161220540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1487}}^1$

素因数の和:1651

約数の個数: 96

約数和(自身を含む): 489968640

約数和(自身を除く): 328748100

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 139, 156, 195, 260, 278, 390, 417, 556, 695, 780, 834, 1390, 1487, 1668, 1807, 2085, 2780, 2974, 3614, 4170, 4461, 5421, 5948, 7228, 7435, 8340, 8922, 9035, 10842, 14870, 17844, 18070, 19331, 21684, 22305, 27105, 29740, 36140, 38662, 44610, 54210, 57993, 77324, 89220, 96655, 108420, 115986, 193310, 206693, 231972, 289965, 386620, 413386, 579930, 620079, 826772, 1033465, 1159860, 1240158, 2066930, 2480316, 2687009, 3100395, 4133860, 5374018, 6200790, 8061027, 10748036, 12401580, 13435045, 16122054, 26870090, 32244108, 40305135, 53740180, 80610270, 161220540]

約数ペア:

[(1, 161220540), (2, 80610270), (3, 53740180), (4, 40305135), (5, 32244108), (6, 26870090), (10, 16122054), (12, 13435045), (13, 12401580), (15, 10748036), (20, 8061027), (26, 6200790), (30, 5374018), (39, 4133860), (52, 3100395), (60, 2687009), (65, 2480316), (78, 2066930), (130, 1240158), (139, 1159860), (156, 1033465), (195, 826772), (260, 620079), (278, 579930), (390, 413386), (417, 386620), (556, 289965), (695, 231972), (780, 206693), (834, 193310), (1390, 115986), (1487, 108420), (1668, 96655), (1807, 89220), (2085, 77324), (2780, 57993), (2974, 54210), (3614, 44610), (4170, 38662), (4461, 36140), (5421, 29740), (5948, 27105), (7228, 22305), (7435, 21684), (8340, 19331), (8922, 18070), (9035, 17844), (10842, 14870)]