20131087880

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{163561}}^1$

素因数の和:163770

約数の個数: 64

約数和(自身を含む): 48224620080

約数和(自身を除く): 28093532200

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 181, 340, 362, 680, 724, 905, 1448, 1810, 3077, 3620, 6154, 7240, 12308, 15385, 24616, 30770, 61540, 123080, 163561, 327122, 654244, 817805, 1308488, 1635610, 2780537, 3271220, 5561074, 6542440, 11122148, 13902685, 22244296, 27805370, 29604541, 55610740, 59209082, 111221480, 118418164, 148022705, 236836328, 296045410, 503277197, 592090820, 1006554394, 1184181640, 2013108788, 2516385985, 4026217576, 5032771970, 10065543940, 20131087880]

約数ペア:

[(1, 20131087880), (2, 10065543940), (4, 5032771970), (5, 4026217576), (8, 2516385985), (10, 2013108788), (17, 1184181640), (20, 1006554394), (34, 592090820), (40, 503277197), (68, 296045410), (85, 236836328), (136, 148022705), (170, 118418164), (181, 111221480), (340, 59209082), (362, 55610740), (680, 29604541), (724, 27805370), (905, 22244296), (1448, 13902685), (1810, 11122148), (3077, 6542440), (3620, 5561074), (6154, 3271220), (7240, 2780537), (12308, 1635610), (15385, 1308488), (24616, 817805), (30770, 654244), (61540, 327122), (123080, 163561)]