20348071640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{738319}}^1$

素因数の和:738396

約数の個数: 64

約数和(自身を含む): 50235292800

約数和(自身を除く): 29887221160

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 53, 65, 104, 106, 130, 212, 260, 265, 424, 520, 530, 689, 1060, 1378, 2120, 2756, 3445, 5512, 6890, 13780, 27560, 738319, 1476638, 2953276, 3691595, 5906552, 7383190, 9598147, 14766380, 19196294, 29532760, 38392588, 39130907, 47990735, 76785176, 78261814, 95981470, 156523628, 191962940, 195654535, 313047256, 383925880, 391309070, 508701791, 782618140, 1017403582, 1565236280, 2034807164, 2543508955, 4069614328, 5087017910, 10174035820, 20348071640]

約数ペア:

[(1, 20348071640), (2, 10174035820), (4, 5087017910), (5, 4069614328), (8, 2543508955), (10, 2034807164), (13, 1565236280), (20, 1017403582), (26, 782618140), (40, 508701791), (52, 391309070), (53, 383925880), (65, 313047256), (104, 195654535), (106, 191962940), (130, 156523628), (212, 95981470), (260, 78261814), (265, 76785176), (424, 47990735), (520, 39130907), (530, 38392588), (689, 29532760), (1060, 19196294), (1378, 14766380), (2120, 9598147), (2756, 7383190), (3445, 5906552), (5512, 3691595), (6890, 2953276), (13780, 1476638), (27560, 738319)]