72182320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{821}}^1$

素因数の和:998

約数の個数: 80

約数和(自身を含む): 193255488

約数和(自身を除く): 121073168

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 157, 280, 314, 560, 628, 785, 821, 1099, 1256, 1570, 1642, 2198, 2512, 3140, 3284, 4105, 4396, 5495, 5747, 6280, 6568, 8210, 8792, 10990, 11494, 12560, 13136, 16420, 17584, 21980, 22988, 28735, 32840, 43960, 45976, 57470, 65680, 87920, 91952, 114940, 128897, 229880, 257794, 459760, 515588, 644485, 902279, 1031176, 1288970, 1804558, 2062352, 2577940, 3609116, 4511395, 5155880, 7218232, 9022790, 10311760, 14436464, 18045580, 36091160, 72182320]

約数ペア:

[(1, 72182320), (2, 36091160), (4, 18045580), (5, 14436464), (7, 10311760), (8, 9022790), (10, 7218232), (14, 5155880), (16, 4511395), (20, 3609116), (28, 2577940), (35, 2062352), (40, 1804558), (56, 1288970), (70, 1031176), (80, 902279), (112, 644485), (140, 515588), (157, 459760), (280, 257794), (314, 229880), (560, 128897), (628, 114940), (785, 91952), (821, 87920), (1099, 65680), (1256, 57470), (1570, 45976), (1642, 43960), (2198, 32840), (2512, 28735), (3140, 22988), (3284, 21980), (4105, 17584), (4396, 16420), (5495, 13136), (5747, 12560), (6280, 11494), (6568, 10990), (8210, 8792)]