89828180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{787}}^1$

素因数の和:1248

約数の個数: 48

約数和(自身を含む): 203871360

約数和(自身を除く): 114043180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 439, 787, 878, 1574, 1756, 2195, 3148, 3935, 4390, 5707, 7870, 8780, 10231, 11414, 15740, 20462, 22828, 28535, 40924, 51155, 57070, 102310, 114140, 204620, 345493, 690986, 1381972, 1727465, 3454930, 4491409, 6909860, 8982818, 17965636, 22457045, 44914090, 89828180]

約数ペア:

[(1, 89828180), (2, 44914090), (4, 22457045), (5, 17965636), (10, 8982818), (13, 6909860), (20, 4491409), (26, 3454930), (52, 1727465), (65, 1381972), (130, 690986), (260, 345493), (439, 204620), (787, 114140), (878, 102310), (1574, 57070), (1756, 51155), (2195, 40924), (3148, 28535), (3935, 22828), (4390, 20462), (5707, 15740), (7870, 11414), (8780, 10231)]