89409890

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{379}}^1\times {\mathrm{761}}^1$

素因数の和:1178

約数の個数: 32

約数和(自身を含む): 166786560

約数和(自身を除く): 77376670

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 379, 758, 761, 1522, 1895, 3790, 3805, 7610, 11749, 23498, 23591, 47182, 58745, 117490, 117955, 235910, 288419, 576838, 1442095, 2884190, 8940989, 17881978, 44704945, 89409890]

約数ペア:

[(1, 89409890), (2, 44704945), (5, 17881978), (10, 8940989), (31, 2884190), (62, 1442095), (155, 576838), (310, 288419), (379, 235910), (758, 117955), (761, 117490), (1522, 58745), (1895, 47182), (3790, 23591), (3805, 23498), (7610, 11749)]