20044920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^3\times {\mathrm{487}}^1$

素因数の和:522

約数の個数: 128

約数和(自身を含む): 70272000

約数和(自身を除く): 50227080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 343, 392, 420, 487, 490, 588, 686, 735, 840, 974, 980, 1029, 1176, 1372, 1461, 1470, 1715, 1948, 1960, 2058, 2435, 2744, 2922, 2940, 3409, 3430, 3896, 4116, 4870, 5145, 5844, 5880, 6818, 6860, 7305, 8232, 9740, 10227, 10290, 11688, 13636, 13720, 14610, 17045, 19480, 20454, 20580, 23863, 27272, 29220, 34090, 40908, 41160, 47726, 51135, 58440, 68180, 71589, 81816, 95452, 102270, 119315, 136360, 143178, 167041, 190904, 204540, 238630, 286356, 334082, 357945, 409080, 477260, 501123, 572712, 668164, 715890, 835205, 954520, 1002246, 1336328, 1431780, 1670410, 2004492, 2505615, 2863560, 3340820, 4008984, 5011230, 6681640, 10022460, 20044920]

約数ペア:

[(1, 20044920), (2, 10022460), (3, 6681640), (4, 5011230), (5, 4008984), (6, 3340820), (7, 2863560), (8, 2505615), (10, 2004492), (12, 1670410), (14, 1431780), (15, 1336328), (20, 1002246), (21, 954520), (24, 835205), (28, 715890), (30, 668164), (35, 572712), (40, 501123), (42, 477260), (49, 409080), (56, 357945), (60, 334082), (70, 286356), (84, 238630), (98, 204540), (105, 190904), (120, 167041), (140, 143178), (147, 136360), (168, 119315), (196, 102270), (210, 95452), (245, 81816), (280, 71589), (294, 68180), (343, 58440), (392, 51135), (420, 47726), (487, 41160), (490, 40908), (588, 34090), (686, 29220), (735, 27272), (840, 23863), (974, 20580), (980, 20454), (1029, 19480), (1176, 17045), (1372, 14610), (1461, 13720), (1470, 13636), (1715, 11688), (1948, 10290), (1960, 10227), (2058, 9740), (2435, 8232), (2744, 7305), (2922, 6860), (2940, 6818), (3409, 5880), (3430, 5844), (3896, 5145), (4116, 4870)]