81934060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{3989}}^1$

素因数の和:4090

約数の個数: 48

約数和(自身を含む): 187689600

約数和(自身を除く): 105755540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 3989, 4108, 5135, 7978, 10270, 15956, 19945, 20540, 39890, 51857, 79780, 103714, 207428, 259285, 315131, 518570, 630262, 1037140, 1260524, 1575655, 3151310, 4096703, 6302620, 8193406, 16386812, 20483515, 40967030, 81934060]

約数ペア:

[(1, 81934060), (2, 40967030), (4, 20483515), (5, 16386812), (10, 8193406), (13, 6302620), (20, 4096703), (26, 3151310), (52, 1575655), (65, 1260524), (79, 1037140), (130, 630262), (158, 518570), (260, 315131), (316, 259285), (395, 207428), (790, 103714), (1027, 79780), (1580, 51857), (2054, 39890), (3989, 20540), (4108, 19945), (5135, 15956), (7978, 10270)]