28655760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{461}}^1$

素因数の和:521

約数の個数: 160

約数和(自身を含む): 104493312

約数和(自身を除く): 75837552

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 37, 40, 42, 48, 56, 60, 70, 74, 80, 84, 105, 111, 112, 120, 140, 148, 168, 185, 210, 222, 240, 259, 280, 296, 336, 370, 420, 444, 461, 518, 555, 560, 592, 740, 777, 840, 888, 922, 1036, 1110, 1295, 1383, 1480, 1554, 1680, 1776, 1844, 2072, 2220, 2305, 2590, 2766, 2960, 3108, 3227, 3688, 3885, 4144, 4440, 4610, 5180, 5532, 6216, 6454, 6915, 7376, 7770, 8880, 9220, 9681, 10360, 11064, 12432, 12908, 13830, 15540, 16135, 17057, 18440, 19362, 20720, 22128, 25816, 27660, 31080, 32270, 34114, 36880, 38724, 48405, 51171, 51632, 55320, 62160, 64540, 68228, 77448, 85285, 96810, 102342, 110640, 119399, 129080, 136456, 154896, 170570, 193620, 204684, 238798, 255855, 258160, 272912, 341140, 358197, 387240, 409368, 477596, 511710, 596995, 682280, 716394, 774480, 818736, 955192, 1023420, 1193990, 1364560, 1432788, 1790985, 1910384, 2046840, 2387980, 2865576, 3581970, 4093680, 4775960, 5731152, 7163940, 9551920, 14327880, 28655760]

約数ペア:

[(1, 28655760), (2, 14327880), (3, 9551920), (4, 7163940), (5, 5731152), (6, 4775960), (7, 4093680), (8, 3581970), (10, 2865576), (12, 2387980), (14, 2046840), (15, 1910384), (16, 1790985), (20, 1432788), (21, 1364560), (24, 1193990), (28, 1023420), (30, 955192), (35, 818736), (37, 774480), (40, 716394), (42, 682280), (48, 596995), (56, 511710), (60, 477596), (70, 409368), (74, 387240), (80, 358197), (84, 341140), (105, 272912), (111, 258160), (112, 255855), (120, 238798), (140, 204684), (148, 193620), (168, 170570), (185, 154896), (210, 136456), (222, 129080), (240, 119399), (259, 110640), (280, 102342), (296, 96810), (336, 85285), (370, 77448), (420, 68228), (444, 64540), (461, 62160), (518, 55320), (555, 51632), (560, 51171), (592, 48405), (740, 38724), (777, 36880), (840, 34114), (888, 32270), (922, 31080), (1036, 27660), (1110, 25816), (1295, 22128), (1383, 20720), (1480, 19362), (1554, 18440), (1680, 17057), (1776, 16135), (1844, 15540), (2072, 13830), (2220, 12908), (2305, 12432), (2590, 11064), (2766, 10360), (2960, 9681), (3108, 9220), (3227, 8880), (3688, 7770), (3885, 7376), (4144, 6915), (4440, 6454), (4610, 6216), (5180, 5532)]