25709840

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1$

素因数の和:504

約数の個数: 80

約数和(自身を含む): 65620800

約数和(自身を除く): 39910960

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 59, 65, 80, 104, 118, 130, 208, 236, 260, 295, 419, 472, 520, 590, 767, 838, 944, 1040, 1180, 1534, 1676, 2095, 2360, 3068, 3352, 3835, 4190, 4720, 5447, 6136, 6704, 7670, 8380, 10894, 12272, 15340, 16760, 21788, 24721, 27235, 30680, 33520, 43576, 49442, 54470, 61360, 87152, 98884, 108940, 123605, 197768, 217880, 247210, 321373, 395536, 435760, 494420, 642746, 988840, 1285492, 1606865, 1977680, 2570984, 3213730, 5141968, 6427460, 12854920, 25709840]

約数ペア:

[(1, 25709840), (2, 12854920), (4, 6427460), (5, 5141968), (8, 3213730), (10, 2570984), (13, 1977680), (16, 1606865), (20, 1285492), (26, 988840), (40, 642746), (52, 494420), (59, 435760), (65, 395536), (80, 321373), (104, 247210), (118, 217880), (130, 197768), (208, 123605), (236, 108940), (260, 98884), (295, 87152), (419, 61360), (472, 54470), (520, 49442), (590, 43576), (767, 33520), (838, 30680), (944, 27235), (1040, 24721), (1180, 21788), (1534, 16760), (1676, 15340), (2095, 12272), (2360, 10894), (3068, 8380), (3352, 7670), (3835, 6704), (4190, 6136), (4720, 5447)]