81010072

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3727}}^1$

素因数の和:3776

約数の個数: 64

約数和(自身を含む): 187891200

約数和(自身を除く): 106881128

約数列:

[1, 2, 4, 8, 11, 13, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 209, 247, 286, 418, 494, 572, 836, 988, 1144, 1672, 1976, 2717, 3727, 5434, 7454, 10868, 14908, 21736, 29816, 40997, 48451, 70813, 81994, 96902, 141626, 163988, 193804, 283252, 327976, 387608, 532961, 566504, 778943, 920569, 1065922, 1557886, 1841138, 2131844, 3115772, 3682276, 4263688, 6231544, 7364552, 10126259, 20252518, 40505036, 81010072]

約数ペア:

[(1, 81010072), (2, 40505036), (4, 20252518), (8, 10126259), (11, 7364552), (13, 6231544), (19, 4263688), (22, 3682276), (26, 3115772), (38, 2131844), (44, 1841138), (52, 1557886), (76, 1065922), (88, 920569), (104, 778943), (143, 566504), (152, 532961), (209, 387608), (247, 327976), (286, 283252), (418, 193804), (494, 163988), (572, 141626), (836, 96902), (988, 81994), (1144, 70813), (1672, 48451), (1976, 40997), (2717, 29816), (3727, 21736), (5434, 14908), (7454, 10868)]