30988220

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 67823616

約数和(自身を除く): 36835396

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 151, 155, 302, 310, 331, 604, 620, 662, 755, 1324, 1510, 1655, 3020, 3310, 4681, 6620, 9362, 10261, 18724, 20522, 23405, 41044, 46810, 49981, 51305, 93620, 99962, 102610, 199924, 205220, 249905, 499810, 999620, 1549411, 3098822, 6197644, 7747055, 15494110, 30988220]

約数ペア:

[(1, 30988220), (2, 15494110), (4, 7747055), (5, 6197644), (10, 3098822), (20, 1549411), (31, 999620), (62, 499810), (124, 249905), (151, 205220), (155, 199924), (302, 102610), (310, 99962), (331, 93620), (604, 51305), (620, 49981), (662, 46810), (755, 41044), (1324, 23405), (1510, 20522), (1655, 18724), (3020, 10261), (3310, 9362), (4681, 6620)]