65918840

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1163}}^1$

素因数の和:1296

約数の個数: 64

約数和(自身を含む): 161330400

約数和(自身を除く): 95411560

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 109, 130, 218, 260, 436, 520, 545, 872, 1090, 1163, 1417, 2180, 2326, 2834, 4360, 4652, 5668, 5815, 7085, 9304, 11336, 11630, 14170, 15119, 23260, 28340, 30238, 46520, 56680, 60476, 75595, 120952, 126767, 151190, 253534, 302380, 507068, 604760, 633835, 1014136, 1267670, 1647971, 2535340, 3295942, 5070680, 6591884, 8239855, 13183768, 16479710, 32959420, 65918840]

約数ペア:

[(1, 65918840), (2, 32959420), (4, 16479710), (5, 13183768), (8, 8239855), (10, 6591884), (13, 5070680), (20, 3295942), (26, 2535340), (40, 1647971), (52, 1267670), (65, 1014136), (104, 633835), (109, 604760), (130, 507068), (218, 302380), (260, 253534), (436, 151190), (520, 126767), (545, 120952), (872, 75595), (1090, 60476), (1163, 56680), (1417, 46520), (2180, 30238), (2326, 28340), (2834, 23260), (4360, 15119), (4652, 14170), (5668, 11630), (5815, 11336), (7085, 9304)]