90740960

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1571}}^1$

素因数の和:1624

約数の個数: 72

約数和(自身を含む): 226396296

約数和(自身を除く): 135655336

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 361, 380, 608, 722, 760, 1444, 1520, 1571, 1805, 2888, 3040, 3142, 3610, 5776, 6284, 7220, 7855, 11552, 12568, 14440, 15710, 25136, 28880, 29849, 31420, 50272, 57760, 59698, 62840, 119396, 125680, 149245, 238792, 251360, 298490, 477584, 567131, 596980, 955168, 1134262, 1193960, 2268524, 2387920, 2835655, 4537048, 4775840, 5671310, 9074096, 11342620, 18148192, 22685240, 45370480, 90740960]

約数ペア:

[(1, 90740960), (2, 45370480), (4, 22685240), (5, 18148192), (8, 11342620), (10, 9074096), (16, 5671310), (19, 4775840), (20, 4537048), (32, 2835655), (38, 2387920), (40, 2268524), (76, 1193960), (80, 1134262), (95, 955168), (152, 596980), (160, 567131), (190, 477584), (304, 298490), (361, 251360), (380, 238792), (608, 149245), (722, 125680), (760, 119396), (1444, 62840), (1520, 59698), (1571, 57760), (1805, 50272), (2888, 31420), (3040, 29849), (3142, 28880), (3610, 25136), (5776, 15710), (6284, 14440), (7220, 12568), (7855, 11552)]