81924320

素因数分解:

$2^5\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83}}^1\times {\mathrm{199}}^1$

素因数の和:328

約数の個数: 96

約数和(自身を含む): 203212800

約数和(自身を除く): 121288480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 80, 83, 124, 155, 160, 166, 199, 248, 310, 332, 398, 415, 496, 620, 664, 796, 830, 992, 995, 1240, 1328, 1592, 1660, 1990, 2480, 2573, 2656, 3184, 3320, 3980, 4960, 5146, 6169, 6368, 6640, 7960, 10292, 12338, 12865, 13280, 15920, 16517, 20584, 24676, 25730, 30845, 31840, 33034, 41168, 49352, 51460, 61690, 66068, 82336, 82585, 98704, 102920, 123380, 132136, 165170, 197408, 205840, 246760, 264272, 330340, 411680, 493520, 512027, 528544, 660680, 987040, 1024054, 1321360, 2048108, 2560135, 2642720, 4096216, 5120270, 8192432, 10240540, 16384864, 20481080, 40962160, 81924320]

約数ペア:

[(1, 81924320), (2, 40962160), (4, 20481080), (5, 16384864), (8, 10240540), (10, 8192432), (16, 5120270), (20, 4096216), (31, 2642720), (32, 2560135), (40, 2048108), (62, 1321360), (80, 1024054), (83, 987040), (124, 660680), (155, 528544), (160, 512027), (166, 493520), (199, 411680), (248, 330340), (310, 264272), (332, 246760), (398, 205840), (415, 197408), (496, 165170), (620, 132136), (664, 123380), (796, 102920), (830, 98704), (992, 82585), (995, 82336), (1240, 66068), (1328, 61690), (1592, 51460), (1660, 49352), (1990, 41168), (2480, 33034), (2573, 31840), (2656, 30845), (3184, 25730), (3320, 24676), (3980, 20584), (4960, 16517), (5146, 15920), (6169, 13280), (6368, 12865), (6640, 12338), (7960, 10292)]