25822520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{557}}^1$

素因数の和:648

約数の個数: 64

約数和(自身を含む): 62272800

約数和(自身を除く): 36450280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 61, 76, 95, 122, 152, 190, 244, 305, 380, 488, 557, 610, 760, 1114, 1159, 1220, 2228, 2318, 2440, 2785, 4456, 4636, 5570, 5795, 9272, 10583, 11140, 11590, 21166, 22280, 23180, 33977, 42332, 46360, 52915, 67954, 84664, 105830, 135908, 169885, 211660, 271816, 339770, 423320, 645563, 679540, 1291126, 1359080, 2582252, 3227815, 5164504, 6455630, 12911260, 25822520]

約数ペア:

[(1, 25822520), (2, 12911260), (4, 6455630), (5, 5164504), (8, 3227815), (10, 2582252), (19, 1359080), (20, 1291126), (38, 679540), (40, 645563), (61, 423320), (76, 339770), (95, 271816), (122, 211660), (152, 169885), (190, 135908), (244, 105830), (305, 84664), (380, 67954), (488, 52915), (557, 46360), (610, 42332), (760, 33977), (1114, 23180), (1159, 22280), (1220, 21166), (2228, 11590), (2318, 11140), (2440, 10583), (2785, 9272), (4456, 5795), (4636, 5570)]