81663570

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{39451}}^1$

素因数の和:39487

約数の個数: 48

約数和(自身を含む): 221562432

約数和(自身を除く): 139898862

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 23, 30, 45, 46, 69, 90, 115, 138, 207, 230, 345, 414, 690, 1035, 2070, 39451, 78902, 118353, 197255, 236706, 355059, 394510, 591765, 710118, 907373, 1183530, 1775295, 1814746, 2722119, 3550590, 4536865, 5444238, 8166357, 9073730, 13610595, 16332714, 27221190, 40831785, 81663570]

約数ペア:

[(1, 81663570), (2, 40831785), (3, 27221190), (5, 16332714), (6, 13610595), (9, 9073730), (10, 8166357), (15, 5444238), (18, 4536865), (23, 3550590), (30, 2722119), (45, 1814746), (46, 1775295), (69, 1183530), (90, 907373), (115, 710118), (138, 591765), (207, 394510), (230, 355059), (345, 236706), (414, 197255), (690, 118353), (1035, 78902), (2070, 39451)]