78564140

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{859}}^1$

素因数の和:1154

約数の個数: 48

約数和(自身を含む): 175543200

約数和(自身を除く): 96979060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 269, 340, 538, 859, 1076, 1345, 1718, 2690, 3436, 4295, 4573, 5380, 8590, 9146, 14603, 17180, 18292, 22865, 29206, 45730, 58412, 73015, 91460, 146030, 231071, 292060, 462142, 924284, 1155355, 2310710, 3928207, 4621420, 7856414, 15712828, 19641035, 39282070, 78564140]

約数ペア:

[(1, 78564140), (2, 39282070), (4, 19641035), (5, 15712828), (10, 7856414), (17, 4621420), (20, 3928207), (34, 2310710), (68, 1155355), (85, 924284), (170, 462142), (269, 292060), (340, 231071), (538, 146030), (859, 91460), (1076, 73015), (1345, 58412), (1718, 45730), (2690, 29206), (3436, 22865), (4295, 18292), (4573, 17180), (5380, 14603), (8590, 9146)]