28545645680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{11510341}}^1$

素因数の和:11510385

約数の個数: 40

約数和(自身を含む): 68509555584

約数和(自身を除く): 39963909904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 11510341, 23020682, 46041364, 57551705, 92082728, 115103410, 184165456, 230206820, 356820571, 460413640, 713641142, 920827280, 1427282284, 1784102855, 2854564568, 3568205710, 5709129136, 7136411420, 14272822840, 28545645680]

約数ペア:

[(1, 28545645680), (2, 14272822840), (4, 7136411420), (5, 5709129136), (8, 3568205710), (10, 2854564568), (16, 1784102855), (20, 1427282284), (31, 920827280), (40, 713641142), (62, 460413640), (80, 356820571), (124, 230206820), (155, 184165456), (248, 115103410), (310, 92082728), (496, 57551705), (620, 46041364), (1240, 23020682), (2480, 11510341)]