20125536800

素因数分解:

$2^5\times 5^2\times {\mathrm{3301}}^1\times {\mathrm{7621}}^1$

素因数の和:10942

約数の個数: 72

約数和(自身を含む): 49152799332

約数和(自身を除く): 29027262532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 3301, 6602, 7621, 13204, 15242, 16505, 26408, 30484, 33010, 38105, 52816, 60968, 66020, 76210, 82525, 105632, 121936, 132040, 152420, 165050, 190525, 243872, 264080, 304840, 330100, 381050, 528160, 609680, 660200, 762100, 1219360, 1320400, 1524200, 2640800, 3048400, 6096800, 25156921, 50313842, 100627684, 125784605, 201255368, 251569210, 402510736, 503138420, 628923025, 805021472, 1006276840, 1257846050, 2012553680, 2515692100, 4025107360, 5031384200, 10062768400, 20125536800]

約数ペア:

[(1, 20125536800), (2, 10062768400), (4, 5031384200), (5, 4025107360), (8, 2515692100), (10, 2012553680), (16, 1257846050), (20, 1006276840), (25, 805021472), (32, 628923025), (40, 503138420), (50, 402510736), (80, 251569210), (100, 201255368), (160, 125784605), (200, 100627684), (400, 50313842), (800, 25156921), (3301, 6096800), (6602, 3048400), (7621, 2640800), (13204, 1524200), (15242, 1320400), (16505, 1219360), (26408, 762100), (30484, 660200), (33010, 609680), (38105, 528160), (52816, 381050), (60968, 330100), (66020, 304840), (76210, 264080), (82525, 243872), (105632, 190525), (121936, 165050), (132040, 152420)]