30981020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{613}}^1$

素因数の和:667

約数の個数: 72

約数和(自身を含む): 78601824

約数和(自身を除く): 47620804

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 361, 380, 532, 613, 665, 722, 1226, 1330, 1444, 1805, 2452, 2527, 2660, 3065, 3610, 4291, 5054, 6130, 7220, 8582, 10108, 11647, 12260, 12635, 17164, 21455, 23294, 25270, 42910, 46588, 50540, 58235, 81529, 85820, 116470, 163058, 221293, 232940, 326116, 407645, 442586, 815290, 885172, 1106465, 1549051, 1630580, 2212930, 3098102, 4425860, 6196204, 7745255, 15490510, 30981020]

約数ペア:

[(1, 30981020), (2, 15490510), (4, 7745255), (5, 6196204), (7, 4425860), (10, 3098102), (14, 2212930), (19, 1630580), (20, 1549051), (28, 1106465), (35, 885172), (38, 815290), (70, 442586), (76, 407645), (95, 326116), (133, 232940), (140, 221293), (190, 163058), (266, 116470), (361, 85820), (380, 81529), (532, 58235), (613, 50540), (665, 46588), (722, 42910), (1226, 25270), (1330, 23294), (1444, 21455), (1805, 17164), (2452, 12635), (2527, 12260), (2660, 11647), (3065, 10108), (3610, 8582), (4291, 7220), (5054, 6130)]