19659680

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:286

約数の個数: 96

約数和(自身を含む): 50803200

約数和(自身を除く): 31143520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 29, 32, 38, 40, 58, 76, 80, 95, 116, 145, 152, 160, 190, 223, 232, 290, 304, 380, 446, 464, 551, 580, 608, 760, 892, 928, 1102, 1115, 1160, 1520, 1784, 2204, 2230, 2320, 2755, 3040, 3568, 4237, 4408, 4460, 4640, 5510, 6467, 7136, 8474, 8816, 8920, 11020, 12934, 16948, 17632, 17840, 21185, 22040, 25868, 32335, 33896, 35680, 42370, 44080, 51736, 64670, 67792, 84740, 88160, 103472, 122873, 129340, 135584, 169480, 206944, 245746, 258680, 338960, 491492, 517360, 614365, 677920, 982984, 1034720, 1228730, 1965968, 2457460, 3931936, 4914920, 9829840, 19659680]

約数ペア:

[(1, 19659680), (2, 9829840), (4, 4914920), (5, 3931936), (8, 2457460), (10, 1965968), (16, 1228730), (19, 1034720), (20, 982984), (29, 677920), (32, 614365), (38, 517360), (40, 491492), (58, 338960), (76, 258680), (80, 245746), (95, 206944), (116, 169480), (145, 135584), (152, 129340), (160, 122873), (190, 103472), (223, 88160), (232, 84740), (290, 67792), (304, 64670), (380, 51736), (446, 44080), (464, 42370), (551, 35680), (580, 33896), (608, 32335), (760, 25868), (892, 22040), (928, 21185), (1102, 17840), (1115, 17632), (1160, 16948), (1520, 12934), (1784, 11020), (2204, 8920), (2230, 8816), (2320, 8474), (2755, 7136), (3040, 6467), (3568, 5510), (4237, 4640), (4408, 4460)]