657181720

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{587}}^1\times {\mathrm{2153}}^1$

素因数の和:2764

約数の個数: 64

約数和(自身を含む): 1595855520

約数和(自身を除く): 938673800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 587, 1174, 2153, 2348, 2935, 4306, 4696, 5870, 7631, 8612, 10765, 11740, 15262, 17224, 21530, 23480, 27989, 30524, 38155, 43060, 55978, 61048, 76310, 86120, 111956, 139945, 152620, 223912, 279890, 305240, 559780, 1119560, 1263811, 2527622, 5055244, 6319055, 10110488, 12638110, 16429543, 25276220, 32859086, 50552440, 65718172, 82147715, 131436344, 164295430, 328590860, 657181720]

約数ペア:

[(1, 657181720), (2, 328590860), (4, 164295430), (5, 131436344), (8, 82147715), (10, 65718172), (13, 50552440), (20, 32859086), (26, 25276220), (40, 16429543), (52, 12638110), (65, 10110488), (104, 6319055), (130, 5055244), (260, 2527622), (520, 1263811), (587, 1119560), (1174, 559780), (2153, 305240), (2348, 279890), (2935, 223912), (4306, 152620), (4696, 139945), (5870, 111956), (7631, 86120), (8612, 76310), (10765, 61048), (11740, 55978), (15262, 43060), (17224, 38155), (21530, 30524), (23480, 27989)]