65287240

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{1423}}^1$

素因数の和:1502

約数の個数: 64

約数和(自身を含む): 155842560

約数和(自身を除く): 90555320

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 740, 1147, 1240, 1423, 1480, 2294, 2846, 4588, 5692, 5735, 7115, 9176, 11384, 11470, 14230, 22940, 28460, 44113, 45880, 52651, 56920, 88226, 105302, 176452, 210604, 220565, 263255, 352904, 421208, 441130, 526510, 882260, 1053020, 1632181, 1764520, 2106040, 3264362, 6528724, 8160905, 13057448, 16321810, 32643620, 65287240]

約数ペア:

[(1, 65287240), (2, 32643620), (4, 16321810), (5, 13057448), (8, 8160905), (10, 6528724), (20, 3264362), (31, 2106040), (37, 1764520), (40, 1632181), (62, 1053020), (74, 882260), (124, 526510), (148, 441130), (155, 421208), (185, 352904), (248, 263255), (296, 220565), (310, 210604), (370, 176452), (620, 105302), (740, 88226), (1147, 56920), (1240, 52651), (1423, 45880), (1480, 44113), (2294, 28460), (2846, 22940), (4588, 14230), (5692, 11470), (5735, 11384), (7115, 9176)]