71880880

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 172801440

約数和(自身を除く): 100920560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 97, 118, 157, 194, 236, 295, 314, 388, 472, 485, 590, 628, 776, 785, 944, 970, 1180, 1256, 1552, 1570, 1940, 2360, 2512, 3140, 3880, 4720, 5723, 6280, 7760, 9263, 11446, 12560, 15229, 18526, 22892, 28615, 30458, 37052, 45784, 46315, 57230, 60916, 74104, 76145, 91568, 92630, 114460, 121832, 148208, 152290, 185260, 228920, 243664, 304580, 370520, 457840, 609160, 741040, 898511, 1218320, 1797022, 3594044, 4492555, 7188088, 8985110, 14376176, 17970220, 35940440, 71880880]

約数ペア:

[(1, 71880880), (2, 35940440), (4, 17970220), (5, 14376176), (8, 8985110), (10, 7188088), (16, 4492555), (20, 3594044), (40, 1797022), (59, 1218320), (80, 898511), (97, 741040), (118, 609160), (157, 457840), (194, 370520), (236, 304580), (295, 243664), (314, 228920), (388, 185260), (472, 152290), (485, 148208), (590, 121832), (628, 114460), (776, 92630), (785, 91568), (944, 76145), (970, 74104), (1180, 60916), (1256, 57230), (1552, 46315), (1570, 45784), (1940, 37052), (2360, 30458), (2512, 28615), (3140, 22892), (3880, 18526), (4720, 15229), (5723, 12560), (6280, 11446), (7760, 9263)]