72149090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17903}}^1$

素因数の和:17954

約数の個数: 32

約数和(自身を含む): 144377856

約数和(自身を除く): 72228766

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 17903, 35806, 89515, 179030, 232739, 465478, 554993, 1109986, 1163695, 2327390, 2774965, 5549930, 7214909, 14429818, 36074545, 72149090]

約数ペア:

[(1, 72149090), (2, 36074545), (5, 14429818), (10, 7214909), (13, 5549930), (26, 2774965), (31, 2327390), (62, 1163695), (65, 1109986), (130, 554993), (155, 465478), (310, 232739), (403, 179030), (806, 89515), (2015, 35806), (4030, 17903)]