20366947640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{269}}^1\times {\mathrm{145603}}^1$

素因数の和:145896

約数の個数: 64

約数和(自身を含む): 49534480800

約数和(自身を除く): 29167533160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 269, 520, 538, 1076, 1345, 2152, 2690, 3497, 5380, 6994, 10760, 13988, 17485, 27976, 34970, 69940, 139880, 145603, 291206, 582412, 728015, 1164824, 1456030, 1892839, 2912060, 3785678, 5824120, 7571356, 9464195, 15142712, 18928390, 37856780, 39167207, 75713560, 78334414, 156668828, 195836035, 313337656, 391672070, 509173691, 783344140, 1018347382, 1566688280, 2036694764, 2545868455, 4073389528, 5091736910, 10183473820, 20366947640]

約数ペア:

[(1, 20366947640), (2, 10183473820), (4, 5091736910), (5, 4073389528), (8, 2545868455), (10, 2036694764), (13, 1566688280), (20, 1018347382), (26, 783344140), (40, 509173691), (52, 391672070), (65, 313337656), (104, 195836035), (130, 156668828), (260, 78334414), (269, 75713560), (520, 39167207), (538, 37856780), (1076, 18928390), (1345, 15142712), (2152, 9464195), (2690, 7571356), (3497, 5824120), (5380, 3785678), (6994, 2912060), (10760, 1892839), (13988, 1456030), (17485, 1164824), (27976, 728015), (34970, 582412), (69940, 291206), (139880, 145603)]