128577780

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{571}}^1$

素因数の和:731

約数の個数: 120

約数和(自身を含む): 406966560

約数和(自身を除く): 278388780

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 81, 90, 108, 135, 139, 162, 180, 270, 278, 324, 405, 417, 540, 556, 571, 695, 810, 834, 1142, 1251, 1390, 1620, 1668, 1713, 2085, 2284, 2502, 2780, 2855, 3426, 3753, 4170, 5004, 5139, 5710, 6255, 6852, 7506, 8340, 8565, 10278, 11259, 11420, 12510, 15012, 15417, 17130, 18765, 20556, 22518, 25020, 25695, 30834, 34260, 37530, 45036, 46251, 51390, 56295, 61668, 75060, 77085, 79369, 92502, 102780, 112590, 154170, 158738, 185004, 225180, 231255, 238107, 308340, 317476, 396845, 462510, 476214, 714321, 793690, 925020, 952428, 1190535, 1428642, 1587380, 2142963, 2381070, 2857284, 3571605, 4285926, 4762140, 6428889, 7143210, 8571852, 10714815, 12857778, 14286420, 21429630, 25715556, 32144445, 42859260, 64288890, 128577780]

約数ペア:

[(1, 128577780), (2, 64288890), (3, 42859260), (4, 32144445), (5, 25715556), (6, 21429630), (9, 14286420), (10, 12857778), (12, 10714815), (15, 8571852), (18, 7143210), (20, 6428889), (27, 4762140), (30, 4285926), (36, 3571605), (45, 2857284), (54, 2381070), (60, 2142963), (81, 1587380), (90, 1428642), (108, 1190535), (135, 952428), (139, 925020), (162, 793690), (180, 714321), (270, 476214), (278, 462510), (324, 396845), (405, 317476), (417, 308340), (540, 238107), (556, 231255), (571, 225180), (695, 185004), (810, 158738), (834, 154170), (1142, 112590), (1251, 102780), (1390, 92502), (1620, 79369), (1668, 77085), (1713, 75060), (2085, 61668), (2284, 56295), (2502, 51390), (2780, 46251), (2855, 45036), (3426, 37530), (3753, 34260), (4170, 30834), (5004, 25695), (5139, 25020), (5710, 22518), (6255, 20556), (6852, 18765), (7506, 17130), (8340, 15417), (8565, 15012), (10278, 12510), (11259, 11420)]