261777888

素因数分解:

$2^5\times 3^2\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:425

約数の個数: 144

約数和(自身を含む): 778377600

約数和(自身を除く): 516599712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 31, 32, 36, 48, 62, 72, 93, 96, 109, 124, 144, 186, 218, 248, 269, 279, 288, 327, 372, 436, 496, 538, 558, 654, 744, 807, 872, 981, 992, 1076, 1116, 1308, 1488, 1614, 1744, 1962, 2152, 2232, 2421, 2616, 2976, 3228, 3379, 3488, 3924, 4304, 4464, 4842, 5232, 6456, 6758, 7848, 8339, 8608, 8928, 9684, 10137, 10464, 12912, 13516, 15696, 16678, 19368, 20274, 25017, 25824, 27032, 29321, 30411, 31392, 33356, 38736, 40548, 50034, 54064, 58642, 60822, 66712, 75051, 77472, 81096, 87963, 100068, 108128, 117284, 121644, 133424, 150102, 162192, 175926, 200136, 234568, 243288, 263889, 266848, 300204, 324384, 351852, 400272, 469136, 486576, 527778, 600408, 703704, 800544, 908951, 938272, 973152, 1055556, 1200816, 1407408, 1817902, 2111112, 2401632, 2726853, 2814816, 3635804, 4222224, 5453706, 7271608, 8180559, 8444448, 10907412, 14543216, 16361118, 21814824, 29086432, 32722236, 43629648, 65444472, 87259296, 130888944, 261777888]

約数ペア:

[(1, 261777888), (2, 130888944), (3, 87259296), (4, 65444472), (6, 43629648), (8, 32722236), (9, 29086432), (12, 21814824), (16, 16361118), (18, 14543216), (24, 10907412), (31, 8444448), (32, 8180559), (36, 7271608), (48, 5453706), (62, 4222224), (72, 3635804), (93, 2814816), (96, 2726853), (109, 2401632), (124, 2111112), (144, 1817902), (186, 1407408), (218, 1200816), (248, 1055556), (269, 973152), (279, 938272), (288, 908951), (327, 800544), (372, 703704), (436, 600408), (496, 527778), (538, 486576), (558, 469136), (654, 400272), (744, 351852), (807, 324384), (872, 300204), (981, 266848), (992, 263889), (1076, 243288), (1116, 234568), (1308, 200136), (1488, 175926), (1614, 162192), (1744, 150102), (1962, 133424), (2152, 121644), (2232, 117284), (2421, 108128), (2616, 100068), (2976, 87963), (3228, 81096), (3379, 77472), (3488, 75051), (3924, 66712), (4304, 60822), (4464, 58642), (4842, 54064), (5232, 50034), (6456, 40548), (6758, 38736), (7848, 33356), (8339, 31392), (8608, 30411), (8928, 29321), (9684, 27032), (10137, 25824), (10464, 25017), (12912, 20274), (13516, 19368), (15696, 16678)]