25408700

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:387

約数の個数: 72

約数和(自身を含む): 59579520

約数和(自身を除く): 34170820

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 172, 190, 215, 311, 380, 430, 475, 622, 817, 860, 950, 1075, 1244, 1555, 1634, 1900, 2150, 3110, 3268, 4085, 4300, 5909, 6220, 7775, 8170, 11818, 13373, 15550, 16340, 20425, 23636, 26746, 29545, 31100, 40850, 53492, 59090, 66865, 81700, 118180, 133730, 147725, 254087, 267460, 295450, 334325, 508174, 590900, 668650, 1016348, 1270435, 1337300, 2540870, 5081740, 6352175, 12704350, 25408700]

約数ペア:

[(1, 25408700), (2, 12704350), (4, 6352175), (5, 5081740), (10, 2540870), (19, 1337300), (20, 1270435), (25, 1016348), (38, 668650), (43, 590900), (50, 508174), (76, 334325), (86, 295450), (95, 267460), (100, 254087), (172, 147725), (190, 133730), (215, 118180), (311, 81700), (380, 66865), (430, 59090), (475, 53492), (622, 40850), (817, 31100), (860, 29545), (950, 26746), (1075, 23636), (1244, 20425), (1555, 16340), (1634, 15550), (1900, 13373), (2150, 11818), (3110, 8170), (3268, 7775), (4085, 6220), (4300, 5909)]