20793885875

素因数分解:

$5^3\times 7^1\times {\mathrm{61}}^1\times {\mathrm{223}}^1\times {\mathrm{1747}}^1$

素因数の和:2053

約数の個数: 64

約数和(自身を含む): 30296727552

約数和(自身を除く): 9502841677

約数列:

[1, 5, 7, 25, 35, 61, 125, 175, 223, 305, 427, 875, 1115, 1525, 1561, 1747, 2135, 5575, 7625, 7805, 8735, 10675, 12229, 13603, 27875, 39025, 43675, 53375, 61145, 68015, 95221, 106567, 195125, 218375, 305725, 340075, 389581, 476105, 532835, 745969, 1528625, 1700375, 1947905, 2380525, 2664175, 2727067, 3729845, 9739525, 11902625, 13320875, 13635335, 18649225, 23764441, 48697625, 68176675, 93246125, 118822205, 166351087, 340883375, 594111025, 831755435, 2970555125, 4158777175, 20793885875]

約数ペア:

[(1, 20793885875), (5, 4158777175), (7, 2970555125), (25, 831755435), (35, 594111025), (61, 340883375), (125, 166351087), (175, 118822205), (223, 93246125), (305, 68176675), (427, 48697625), (875, 23764441), (1115, 18649225), (1525, 13635335), (1561, 13320875), (1747, 11902625), (2135, 9739525), (5575, 3729845), (7625, 2727067), (7805, 2664175), (8735, 2380525), (10675, 1947905), (12229, 1700375), (13603, 1528625), (27875, 745969), (39025, 532835), (43675, 476105), (53375, 389581), (61145, 340075), (68015, 305725), (95221, 218375), (106567, 195125)]