25385900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:495

約数の個数: 72

約数和(自身を含む): 59996160

約数和(自身を除く): 34610260

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 31, 38, 50, 62, 76, 95, 100, 124, 155, 190, 310, 380, 431, 475, 589, 620, 775, 862, 950, 1178, 1550, 1724, 1900, 2155, 2356, 2945, 3100, 4310, 5890, 8189, 8620, 10775, 11780, 13361, 14725, 16378, 21550, 26722, 29450, 32756, 40945, 43100, 53444, 58900, 66805, 81890, 133610, 163780, 204725, 253859, 267220, 334025, 409450, 507718, 668050, 818900, 1015436, 1269295, 1336100, 2538590, 5077180, 6346475, 12692950, 25385900]

約数ペア:

[(1, 25385900), (2, 12692950), (4, 6346475), (5, 5077180), (10, 2538590), (19, 1336100), (20, 1269295), (25, 1015436), (31, 818900), (38, 668050), (50, 507718), (62, 409450), (76, 334025), (95, 267220), (100, 253859), (124, 204725), (155, 163780), (190, 133610), (310, 81890), (380, 66805), (431, 58900), (475, 53444), (589, 43100), (620, 40945), (775, 32756), (862, 29450), (950, 26722), (1178, 21550), (1550, 16378), (1724, 14725), (1900, 13361), (2155, 11780), (2356, 10775), (2945, 8620), (3100, 8189), (4310, 5890)]