804907640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{281}}^1\times {\mathrm{3769}}^1$

素因数の和:4080

約数の個数: 64

約数和(自身を含む): 1913652000

約数和(自身を除く): 1108744360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 281, 380, 562, 760, 1124, 1405, 2248, 2810, 3769, 5339, 5620, 7538, 10678, 11240, 15076, 18845, 21356, 26695, 30152, 37690, 42712, 53390, 71611, 75380, 106780, 143222, 150760, 213560, 286444, 358055, 572888, 716110, 1059089, 1432220, 2118178, 2864440, 4236356, 5295445, 8472712, 10590890, 20122691, 21181780, 40245382, 42363560, 80490764, 100613455, 160981528, 201226910, 402453820, 804907640]

約数ペア:

[(1, 804907640), (2, 402453820), (4, 201226910), (5, 160981528), (8, 100613455), (10, 80490764), (19, 42363560), (20, 40245382), (38, 21181780), (40, 20122691), (76, 10590890), (95, 8472712), (152, 5295445), (190, 4236356), (281, 2864440), (380, 2118178), (562, 1432220), (760, 1059089), (1124, 716110), (1405, 572888), (2248, 358055), (2810, 286444), (3769, 213560), (5339, 150760), (5620, 143222), (7538, 106780), (10678, 75380), (11240, 71611), (15076, 53390), (18845, 42712), (21356, 37690), (26695, 30152)]