51110320

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{557}}^1$

素因数の和:638

約数の個数: 80

約数和(自身を含む): 126206208

約数和(自身を除く): 75095888

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 37, 40, 62, 74, 80, 124, 148, 155, 185, 248, 296, 310, 370, 496, 557, 592, 620, 740, 1114, 1147, 1240, 1480, 2228, 2294, 2480, 2785, 2960, 4456, 4588, 5570, 5735, 8912, 9176, 11140, 11470, 17267, 18352, 20609, 22280, 22940, 34534, 41218, 44560, 45880, 69068, 82436, 86335, 91760, 103045, 138136, 164872, 172670, 206090, 276272, 329744, 345340, 412180, 638879, 690680, 824360, 1277758, 1381360, 1648720, 2555516, 3194395, 5111032, 6388790, 10222064, 12777580, 25555160, 51110320]

約数ペア:

[(1, 51110320), (2, 25555160), (4, 12777580), (5, 10222064), (8, 6388790), (10, 5111032), (16, 3194395), (20, 2555516), (31, 1648720), (37, 1381360), (40, 1277758), (62, 824360), (74, 690680), (80, 638879), (124, 412180), (148, 345340), (155, 329744), (185, 276272), (248, 206090), (296, 172670), (310, 164872), (370, 138136), (496, 103045), (557, 91760), (592, 86335), (620, 82436), (740, 69068), (1114, 45880), (1147, 44560), (1240, 41218), (1480, 34534), (2228, 22940), (2294, 22280), (2480, 20609), (2785, 18352), (2960, 17267), (4456, 11470), (4588, 11140), (5570, 9176), (5735, 8912)]