20012670

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{797}}^1$

素因数の和:847

約数の個数: 80

約数和(自身を含む): 55617408

約数和(自身を除く): 35604738

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 81, 90, 93, 135, 155, 162, 186, 270, 279, 310, 405, 465, 558, 797, 810, 837, 930, 1395, 1594, 1674, 2391, 2511, 2790, 3985, 4185, 4782, 5022, 7173, 7970, 8370, 11955, 12555, 14346, 21519, 23910, 24707, 25110, 35865, 43038, 49414, 64557, 71730, 74121, 107595, 123535, 129114, 148242, 215190, 222363, 247070, 322785, 370605, 444726, 645570, 667089, 741210, 1111815, 1334178, 2001267, 2223630, 3335445, 4002534, 6670890, 10006335, 20012670]

約数ペア:

[(1, 20012670), (2, 10006335), (3, 6670890), (5, 4002534), (6, 3335445), (9, 2223630), (10, 2001267), (15, 1334178), (18, 1111815), (27, 741210), (30, 667089), (31, 645570), (45, 444726), (54, 370605), (62, 322785), (81, 247070), (90, 222363), (93, 215190), (135, 148242), (155, 129114), (162, 123535), (186, 107595), (270, 74121), (279, 71730), (310, 64557), (405, 49414), (465, 43038), (558, 35865), (797, 25110), (810, 24707), (837, 23910), (930, 21519), (1395, 14346), (1594, 12555), (1674, 11955), (2391, 8370), (2511, 7970), (2790, 7173), (3985, 5022), (4185, 4782)]