91009840

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{66919}}^1$

素因数の和:66949

約数の個数: 40

約数和(自身を含む): 224048160

約数和(自身を除く): 133038320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 66919, 133838, 267676, 334595, 535352, 669190, 1070704, 1137623, 1338380, 2275246, 2676760, 4550492, 5353520, 5688115, 9100984, 11376230, 18201968, 22752460, 45504920, 91009840]

約数ペア:

[(1, 91009840), (2, 45504920), (4, 22752460), (5, 18201968), (8, 11376230), (10, 9100984), (16, 5688115), (17, 5353520), (20, 4550492), (34, 2676760), (40, 2275246), (68, 1338380), (80, 1137623), (85, 1070704), (136, 669190), (170, 535352), (272, 334595), (340, 267676), (680, 133838), (1360, 66919)]