25170760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{383}}^1$

素因数の和:478

約数の個数: 64

約数和(自身を含む): 59719680

約数和(自身を除く): 34548920

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 53, 62, 106, 124, 155, 212, 248, 265, 310, 383, 424, 530, 620, 766, 1060, 1240, 1532, 1643, 1915, 2120, 3064, 3286, 3830, 6572, 7660, 8215, 11873, 13144, 15320, 16430, 20299, 23746, 32860, 40598, 47492, 59365, 65720, 81196, 94984, 101495, 118730, 162392, 202990, 237460, 405980, 474920, 629269, 811960, 1258538, 2517076, 3146345, 5034152, 6292690, 12585380, 25170760]

約数ペア:

[(1, 25170760), (2, 12585380), (4, 6292690), (5, 5034152), (8, 3146345), (10, 2517076), (20, 1258538), (31, 811960), (40, 629269), (53, 474920), (62, 405980), (106, 237460), (124, 202990), (155, 162392), (212, 118730), (248, 101495), (265, 94984), (310, 81196), (383, 65720), (424, 59365), (530, 47492), (620, 40598), (766, 32860), (1060, 23746), (1240, 20299), (1532, 16430), (1643, 15320), (1915, 13144), (2120, 11873), (3064, 8215), (3286, 7660), (3830, 6572)]