20218557060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8640409}}^1$

素因数の和:8640437

約数の個数: 72

約数和(自身を含む): 66047294040

約数和(自身を除く): 45828736980

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 8640409, 17280818, 25921227, 34561636, 43202045, 51842454, 77763681, 86404090, 103684908, 112325317, 129606135, 155527362, 172808180, 224650634, 259212270, 311054724, 336975951, 388818405, 449301268, 518424540, 561626585, 673951902, 777636810, 1010927853, 1123253170, 1347903804, 1555273620, 1684879755, 2021855706, 2246506340, 3369759510, 4043711412, 5054639265, 6739519020, 10109278530, 20218557060]

約数ペア:

[(1, 20218557060), (2, 10109278530), (3, 6739519020), (4, 5054639265), (5, 4043711412), (6, 3369759510), (9, 2246506340), (10, 2021855706), (12, 1684879755), (13, 1555273620), (15, 1347903804), (18, 1123253170), (20, 1010927853), (26, 777636810), (30, 673951902), (36, 561626585), (39, 518424540), (45, 449301268), (52, 388818405), (60, 336975951), (65, 311054724), (78, 259212270), (90, 224650634), (117, 172808180), (130, 155527362), (156, 129606135), (180, 112325317), (195, 103684908), (234, 86404090), (260, 77763681), (390, 51842454), (468, 43202045), (585, 34561636), (780, 25921227), (1170, 17280818), (2340, 8640409)]