395654320

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{349}}^1\times {\mathrm{383}}^1$

素因数の和:782

約数の個数: 80

約数和(自身を含む): 949939200

約数和(自身を除く): 554284880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 148, 185, 296, 349, 370, 383, 592, 698, 740, 766, 1396, 1480, 1532, 1745, 1915, 2792, 2960, 3064, 3490, 3830, 5584, 6128, 6980, 7660, 12913, 13960, 14171, 15320, 25826, 27920, 28342, 30640, 51652, 56684, 64565, 70855, 103304, 113368, 129130, 133667, 141710, 206608, 226736, 258260, 267334, 283420, 516520, 534668, 566840, 668335, 1033040, 1069336, 1133680, 1336670, 2138672, 2673340, 4945679, 5346680, 9891358, 10693360, 19782716, 24728395, 39565432, 49456790, 79130864, 98913580, 197827160, 395654320]

約数ペア:

[(1, 395654320), (2, 197827160), (4, 98913580), (5, 79130864), (8, 49456790), (10, 39565432), (16, 24728395), (20, 19782716), (37, 10693360), (40, 9891358), (74, 5346680), (80, 4945679), (148, 2673340), (185, 2138672), (296, 1336670), (349, 1133680), (370, 1069336), (383, 1033040), (592, 668335), (698, 566840), (740, 534668), (766, 516520), (1396, 283420), (1480, 267334), (1532, 258260), (1745, 226736), (1915, 206608), (2792, 141710), (2960, 133667), (3064, 129130), (3490, 113368), (3830, 103304), (5584, 70855), (6128, 64565), (6980, 56684), (7660, 51652), (12913, 30640), (13960, 28342), (14171, 27920), (15320, 25826)]