221564980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:198

約数の個数: 192

約数和(自身を含む): 614154240

約数和(自身を除く): 392589260

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 23, 26, 28, 35, 46, 52, 65, 67, 70, 79, 91, 92, 115, 130, 134, 140, 158, 161, 182, 230, 260, 268, 299, 316, 322, 335, 364, 395, 455, 460, 469, 553, 598, 644, 670, 790, 805, 871, 910, 938, 1027, 1106, 1196, 1340, 1495, 1541, 1580, 1610, 1742, 1817, 1820, 1876, 2054, 2093, 2212, 2345, 2765, 2990, 3082, 3220, 3484, 3634, 4108, 4186, 4355, 4690, 5135, 5293, 5530, 5980, 6097, 6164, 7189, 7268, 7705, 8372, 8710, 9085, 9380, 10270, 10465, 10586, 10787, 11060, 12194, 12719, 14378, 15410, 17420, 18170, 20033, 20540, 20930, 21172, 21574, 23621, 24388, 25438, 26465, 28756, 30485, 30820, 35945, 36340, 37051, 40066, 41860, 43148, 47242, 50876, 52930, 53935, 60970, 63595, 68809, 71890, 74102, 80132, 94484, 100165, 105860, 107870, 118105, 121739, 121940, 127190, 137618, 140231, 143780, 148204, 165347, 185255, 200330, 215740, 236210, 243478, 254380, 275236, 280462, 330694, 344045, 370510, 400660, 472420, 481663, 486956, 560924, 608695, 661388, 688090, 701155, 741020, 826735, 852173, 963326, 1217390, 1376180, 1402310, 1582607, 1653470, 1704346, 1926652, 2408315, 2434780, 2804620, 3165214, 3306940, 3408692, 4260865, 4816630, 6330428, 7913035, 8521730, 9633260, 11078249, 15826070, 17043460, 22156498, 31652140, 44312996, 55391245, 110782490, 221564980]

約数ペア:

[(1, 221564980), (2, 110782490), (4, 55391245), (5, 44312996), (7, 31652140), (10, 22156498), (13, 17043460), (14, 15826070), (20, 11078249), (23, 9633260), (26, 8521730), (28, 7913035), (35, 6330428), (46, 4816630), (52, 4260865), (65, 3408692), (67, 3306940), (70, 3165214), (79, 2804620), (91, 2434780), (92, 2408315), (115, 1926652), (130, 1704346), (134, 1653470), (140, 1582607), (158, 1402310), (161, 1376180), (182, 1217390), (230, 963326), (260, 852173), (268, 826735), (299, 741020), (316, 701155), (322, 688090), (335, 661388), (364, 608695), (395, 560924), (455, 486956), (460, 481663), (469, 472420), (553, 400660), (598, 370510), (644, 344045), (670, 330694), (790, 280462), (805, 275236), (871, 254380), (910, 243478), (938, 236210), (1027, 215740), (1106, 200330), (1196, 185255), (1340, 165347), (1495, 148204), (1541, 143780), (1580, 140231), (1610, 137618), (1742, 127190), (1817, 121940), (1820, 121739), (1876, 118105), (2054, 107870), (2093, 105860), (2212, 100165), (2345, 94484), (2765, 80132), (2990, 74102), (3082, 71890), (3220, 68809), (3484, 63595), (3634, 60970), (4108, 53935), (4186, 52930), (4355, 50876), (4690, 47242), (5135, 43148), (5293, 41860), (5530, 40066), (5980, 37051), (6097, 36340), (6164, 35945), (7189, 30820), (7268, 30485), (7705, 28756), (8372, 26465), (8710, 25438), (9085, 24388), (9380, 23621), (10270, 21574), (10465, 21172), (10586, 20930), (10787, 20540), (11060, 20033), (12194, 18170), (12719, 17420), (14378, 15410)]