205415080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1223}}^1$

素因数の和:1283

約数の個数: 128

約数和(自身を含む): 555206400

約数和(自身を除く): 349791320

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 884, 988, 1105, 1223, 1235, 1292, 1615, 1768, 1976, 2210, 2446, 2470, 2584, 3230, 4199, 4420, 4892, 4940, 6115, 6460, 8398, 8840, 9784, 9880, 12230, 12920, 15899, 16796, 20791, 20995, 23237, 24460, 31798, 33592, 41582, 41990, 46474, 48920, 63596, 79495, 83164, 83980, 92948, 103955, 116185, 127192, 158990, 166328, 167960, 185896, 207910, 232370, 270283, 302081, 317980, 395029, 415820, 464740, 540566, 604162, 635960, 790058, 831640, 929480, 1081132, 1208324, 1351415, 1510405, 1580116, 1975145, 2162264, 2416648, 2702830, 3020810, 3160232, 3950290, 5135377, 5405660, 6041620, 7900580, 10270754, 10811320, 12083240, 15801160, 20541508, 25676885, 41083016, 51353770, 102707540, 205415080]

約数ペア:

[(1, 205415080), (2, 102707540), (4, 51353770), (5, 41083016), (8, 25676885), (10, 20541508), (13, 15801160), (17, 12083240), (19, 10811320), (20, 10270754), (26, 7900580), (34, 6041620), (38, 5405660), (40, 5135377), (52, 3950290), (65, 3160232), (68, 3020810), (76, 2702830), (85, 2416648), (95, 2162264), (104, 1975145), (130, 1580116), (136, 1510405), (152, 1351415), (170, 1208324), (190, 1081132), (221, 929480), (247, 831640), (260, 790058), (323, 635960), (340, 604162), (380, 540566), (442, 464740), (494, 415820), (520, 395029), (646, 317980), (680, 302081), (760, 270283), (884, 232370), (988, 207910), (1105, 185896), (1223, 167960), (1235, 166328), (1292, 158990), (1615, 127192), (1768, 116185), (1976, 103955), (2210, 92948), (2446, 83980), (2470, 83164), (2584, 79495), (3230, 63596), (4199, 48920), (4420, 46474), (4892, 41990), (4940, 41582), (6115, 33592), (6460, 31798), (8398, 24460), (8840, 23237), (9784, 20995), (9880, 20791), (12230, 16796), (12920, 15899)]