1955904080

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:210

約数の個数: 240

約数和(自身を含む): 5378405760

約数和(自身を除く): 3422501680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 31, 38, 40, 52, 62, 65, 76, 80, 95, 103, 104, 124, 130, 152, 155, 190, 206, 208, 247, 248, 260, 304, 310, 380, 403, 412, 494, 496, 515, 520, 589, 620, 760, 806, 824, 961, 988, 1030, 1040, 1178, 1235, 1240, 1339, 1520, 1612, 1648, 1922, 1957, 1976, 2015, 2060, 2356, 2470, 2480, 2678, 2945, 3193, 3224, 3844, 3914, 3952, 4030, 4120, 4712, 4805, 4940, 5356, 5890, 6386, 6448, 6695, 7657, 7688, 7828, 8060, 8240, 9424, 9610, 9785, 9880, 10712, 11780, 12493, 12772, 13390, 15314, 15376, 15656, 15965, 16120, 18259, 19220, 19570, 19760, 21424, 23560, 24986, 25441, 25544, 26780, 30628, 31312, 31930, 32240, 36518, 38285, 38440, 39140, 41509, 47120, 49972, 50882, 51088, 53560, 60667, 61256, 62465, 63860, 73036, 76570, 76880, 78280, 83018, 91295, 98983, 99944, 101764, 107120, 121334, 122512, 124930, 127205, 127720, 146072, 153140, 156560, 166036, 182590, 197966, 199888, 203528, 207545, 237367, 242668, 249860, 254410, 255440, 292144, 303335, 306280, 332072, 365180, 395932, 407056, 415090, 474734, 485336, 494915, 499720, 508820, 606670, 612560, 664144, 730360, 788671, 791864, 830180, 949468, 970672, 989830, 999440, 1017640, 1186835, 1213340, 1286779, 1460720, 1577342, 1583728, 1660360, 1880677, 1898936, 1979660, 2035280, 2373670, 2426680, 2573558, 3154684, 3320720, 3761354, 3797872, 3943355, 3959320, 4747340, 4853360, 5147116, 6309368, 6433895, 7522708, 7886710, 7918640, 9403385, 9494680, 10294232, 12618736, 12867790, 15045416, 15773420, 18806770, 18989360, 20588464, 24448801, 25735580, 30090832, 31546840, 37613540, 48897602, 51471160, 63093680, 75227080, 97795204, 102942320, 122244005, 150454160, 195590408, 244488010, 391180816, 488976020, 977952040, 1955904080]

約数ペア:

[(1, 1955904080), (2, 977952040), (4, 488976020), (5, 391180816), (8, 244488010), (10, 195590408), (13, 150454160), (16, 122244005), (19, 102942320), (20, 97795204), (26, 75227080), (31, 63093680), (38, 51471160), (40, 48897602), (52, 37613540), (62, 31546840), (65, 30090832), (76, 25735580), (80, 24448801), (95, 20588464), (103, 18989360), (104, 18806770), (124, 15773420), (130, 15045416), (152, 12867790), (155, 12618736), (190, 10294232), (206, 9494680), (208, 9403385), (247, 7918640), (248, 7886710), (260, 7522708), (304, 6433895), (310, 6309368), (380, 5147116), (403, 4853360), (412, 4747340), (494, 3959320), (496, 3943355), (515, 3797872), (520, 3761354), (589, 3320720), (620, 3154684), (760, 2573558), (806, 2426680), (824, 2373670), (961, 2035280), (988, 1979660), (1030, 1898936), (1040, 1880677), (1178, 1660360), (1235, 1583728), (1240, 1577342), (1339, 1460720), (1520, 1286779), (1612, 1213340), (1648, 1186835), (1922, 1017640), (1957, 999440), (1976, 989830), (2015, 970672), (2060, 949468), (2356, 830180), (2470, 791864), (2480, 788671), (2678, 730360), (2945, 664144), (3193, 612560), (3224, 606670), (3844, 508820), (3914, 499720), (3952, 494915), (4030, 485336), (4120, 474734), (4712, 415090), (4805, 407056), (4940, 395932), (5356, 365180), (5890, 332072), (6386, 306280), (6448, 303335), (6695, 292144), (7657, 255440), (7688, 254410), (7828, 249860), (8060, 242668), (8240, 237367), (9424, 207545), (9610, 203528), (9785, 199888), (9880, 197966), (10712, 182590), (11780, 166036), (12493, 156560), (12772, 153140), (13390, 146072), (15314, 127720), (15376, 127205), (15656, 124930), (15965, 122512), (16120, 121334), (18259, 107120), (19220, 101764), (19570, 99944), (19760, 98983), (21424, 91295), (23560, 83018), (24986, 78280), (25441, 76880), (25544, 76570), (26780, 73036), (30628, 63860), (31312, 62465), (31930, 61256), (32240, 60667), (36518, 53560), (38285, 51088), (38440, 50882), (39140, 49972), (41509, 47120)]