28812875

素因数分解:

$5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{149}}^1$

素因数の和:201

約数の個数: 64

約数和(自身を含む): 47174400

約数和(自身を除く): 18361525

約数列:

[1, 5, 7, 13, 17, 25, 35, 65, 85, 91, 119, 125, 149, 175, 221, 325, 425, 455, 595, 745, 875, 1043, 1105, 1547, 1625, 1937, 2125, 2275, 2533, 2975, 3725, 5215, 5525, 7735, 9685, 11375, 12665, 13559, 14875, 17731, 18625, 26075, 27625, 32929, 38675, 48425, 63325, 67795, 88655, 130375, 164645, 193375, 230503, 242125, 316625, 338975, 443275, 823225, 1152515, 1694875, 2216375, 4116125, 5762575, 28812875]

約数ペア:

[(1, 28812875), (5, 5762575), (7, 4116125), (13, 2216375), (17, 1694875), (25, 1152515), (35, 823225), (65, 443275), (85, 338975), (91, 316625), (119, 242125), (125, 230503), (149, 193375), (175, 164645), (221, 130375), (325, 88655), (425, 67795), (455, 63325), (595, 48425), (745, 38675), (875, 32929), (1043, 27625), (1105, 26075), (1547, 18625), (1625, 17731), (1937, 14875), (2125, 13559), (2275, 12665), (2533, 11375), (2975, 9685), (3725, 7735), (5215, 5525)]