31578460

素因数分解:

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

素因数の和:155

約数の個数: 48

約数和(自身を含む): 69818112

約数和(自身を除く): 38239652

約数列:

[1, 2, 4, 5, 10, 20, 31, 53, 62, 106, 124, 155, 212, 265, 310, 530, 620, 961, 1060, 1643, 1922, 3286, 3844, 4805, 6572, 8215, 9610, 16430, 19220, 29791, 32860, 50933, 59582, 101866, 119164, 148955, 203732, 254665, 297910, 509330, 595820, 1018660, 1578923, 3157846, 6315692, 7894615, 15789230, 31578460]

約数ペア:

[(1, 31578460), (2, 15789230), (4, 7894615), (5, 6315692), (10, 3157846), (20, 1578923), (31, 1018660), (53, 595820), (62, 509330), (106, 297910), (124, 254665), (155, 203732), (212, 148955), (265, 119164), (310, 101866), (530, 59582), (620, 50933), (961, 32860), (1060, 29791), (1643, 19220), (1922, 16430), (3286, 9610), (3844, 8215), (4805, 6572)]