2157212880

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2221}}^1$

素因数の和:2330

約数の個数: 240

約数和(自身を含む): 7736826240

約数和(自身を除く): 5579613360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 71, 72, 76, 80, 90, 95, 114, 120, 142, 144, 152, 171, 180, 190, 213, 228, 240, 284, 285, 304, 342, 355, 360, 380, 426, 456, 568, 570, 639, 684, 710, 720, 760, 852, 855, 912, 1065, 1136, 1140, 1278, 1349, 1368, 1420, 1520, 1704, 1710, 2130, 2221, 2280, 2556, 2698, 2736, 2840, 3195, 3408, 3420, 4047, 4260, 4442, 4560, 5112, 5396, 5680, 6390, 6663, 6745, 6840, 8094, 8520, 8884, 10224, 10792, 11105, 12141, 12780, 13326, 13490, 13680, 16188, 17040, 17768, 19989, 20235, 21584, 22210, 24282, 25560, 26652, 26980, 32376, 33315, 35536, 39978, 40470, 42199, 44420, 48564, 51120, 53304, 53960, 60705, 64752, 66630, 79956, 80940, 84398, 88840, 97128, 99945, 106608, 107920, 121410, 126597, 133260, 157691, 159912, 161880, 168796, 177680, 194256, 199890, 210995, 242820, 253194, 266520, 315382, 319824, 323760, 337592, 379791, 399780, 421990, 473073, 485640, 506388, 533040, 630764, 632985, 675184, 759582, 788455, 799560, 843980, 946146, 971280, 1012776, 1261528, 1265970, 1419219, 1519164, 1576910, 1599120, 1687960, 1892292, 1898955, 2025552, 2365365, 2523056, 2531940, 2838438, 2996129, 3038328, 3153820, 3375920, 3784584, 3797910, 4730730, 5063880, 5676876, 5992258, 6076656, 6307640, 7096095, 7569168, 7595820, 8988387, 9461460, 10127760, 11353752, 11984516, 12615280, 14192190, 14980645, 15191640, 17976774, 18922920, 22707504, 23969032, 26965161, 28384380, 29961290, 30383280, 35953548, 37845840, 44941935, 47938064, 53930322, 56768760, 59922580, 71907096, 89883870, 107860644, 113537520, 119845160, 134825805, 143814192, 179767740, 215721288, 239690320, 269651610, 359535480, 431442576, 539303220, 719070960, 1078606440, 2157212880]

約数ペア:

[(1, 2157212880), (2, 1078606440), (3, 719070960), (4, 539303220), (5, 431442576), (6, 359535480), (8, 269651610), (9, 239690320), (10, 215721288), (12, 179767740), (15, 143814192), (16, 134825805), (18, 119845160), (19, 113537520), (20, 107860644), (24, 89883870), (30, 71907096), (36, 59922580), (38, 56768760), (40, 53930322), (45, 47938064), (48, 44941935), (57, 37845840), (60, 35953548), (71, 30383280), (72, 29961290), (76, 28384380), (80, 26965161), (90, 23969032), (95, 22707504), (114, 18922920), (120, 17976774), (142, 15191640), (144, 14980645), (152, 14192190), (171, 12615280), (180, 11984516), (190, 11353752), (213, 10127760), (228, 9461460), (240, 8988387), (284, 7595820), (285, 7569168), (304, 7096095), (342, 6307640), (355, 6076656), (360, 5992258), (380, 5676876), (426, 5063880), (456, 4730730), (568, 3797910), (570, 3784584), (639, 3375920), (684, 3153820), (710, 3038328), (720, 2996129), (760, 2838438), (852, 2531940), (855, 2523056), (912, 2365365), (1065, 2025552), (1136, 1898955), (1140, 1892292), (1278, 1687960), (1349, 1599120), (1368, 1576910), (1420, 1519164), (1520, 1419219), (1704, 1265970), (1710, 1261528), (2130, 1012776), (2221, 971280), (2280, 946146), (2556, 843980), (2698, 799560), (2736, 788455), (2840, 759582), (3195, 675184), (3408, 632985), (3420, 630764), (4047, 533040), (4260, 506388), (4442, 485640), (4560, 473073), (5112, 421990), (5396, 399780), (5680, 379791), (6390, 337592), (6663, 323760), (6745, 319824), (6840, 315382), (8094, 266520), (8520, 253194), (8884, 242820), (10224, 210995), (10792, 199890), (11105, 194256), (12141, 177680), (12780, 168796), (13326, 161880), (13490, 159912), (13680, 157691), (16188, 133260), (17040, 126597), (17768, 121410), (19989, 107920), (20235, 106608), (21584, 99945), (22210, 97128), (24282, 88840), (25560, 84398), (26652, 80940), (26980, 79956), (32376, 66630), (33315, 64752), (35536, 60705), (39978, 53960), (40470, 53304), (42199, 51120), (44420, 48564)]