20120851940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4636141}}^1$

素因数の和:4636188

約数の個数: 48

約数和(自身を含む): 49847798784

約数和(自身を除く): 29726946844

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4340, 4636141, 9272282, 18544564, 23180705, 32452987, 46361410, 64905974, 92722820, 129811948, 143720371, 162264935, 287440742, 324529870, 574881484, 649059740, 718601855, 1006042597, 1437203710, 2012085194, 2874407420, 4024170388, 5030212985, 10060425970, 20120851940]

約数ペア:

[(1, 20120851940), (2, 10060425970), (4, 5030212985), (5, 4024170388), (7, 2874407420), (10, 2012085194), (14, 1437203710), (20, 1006042597), (28, 718601855), (31, 649059740), (35, 574881484), (62, 324529870), (70, 287440742), (124, 162264935), (140, 143720371), (155, 129811948), (217, 92722820), (310, 64905974), (434, 46361410), (620, 32452987), (868, 23180705), (1085, 18544564), (2170, 9272282), (4340, 4636141)]