28173080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3187}}^1$

素因数の和:3228

約数の個数: 64

約数和(自身を含む): 72303840

約数和(自身を除く): 44130760

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 85, 104, 130, 136, 170, 221, 260, 340, 442, 520, 680, 884, 1105, 1768, 2210, 3187, 4420, 6374, 8840, 12748, 15935, 25496, 31870, 41431, 54179, 63740, 82862, 108358, 127480, 165724, 207155, 216716, 270895, 331448, 414310, 433432, 541790, 704327, 828620, 1083580, 1408654, 1657240, 2167160, 2817308, 3521635, 5634616, 7043270, 14086540, 28173080]

約数ペア:

[(1, 28173080), (2, 14086540), (4, 7043270), (5, 5634616), (8, 3521635), (10, 2817308), (13, 2167160), (17, 1657240), (20, 1408654), (26, 1083580), (34, 828620), (40, 704327), (52, 541790), (65, 433432), (68, 414310), (85, 331448), (104, 270895), (130, 216716), (136, 207155), (170, 165724), (221, 127480), (260, 108358), (340, 82862), (442, 63740), (520, 54179), (680, 41431), (884, 31870), (1105, 25496), (1768, 15935), (2210, 12748), (3187, 8840), (4420, 6374)]