20817420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{2053}}^1$

素因数の和:2091

約数の個数: 72

約数和(自身を含む): 63148176

約数和(自身を除く): 42330756

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 169, 195, 260, 338, 390, 507, 676, 780, 845, 1014, 1690, 2028, 2053, 2535, 3380, 4106, 5070, 6159, 8212, 10140, 10265, 12318, 20530, 24636, 26689, 30795, 41060, 53378, 61590, 80067, 106756, 123180, 133445, 160134, 266890, 320268, 346957, 400335, 533780, 693914, 800670, 1040871, 1387828, 1601340, 1734785, 2081742, 3469570, 4163484, 5204355, 6939140, 10408710, 20817420]

約数ペア:

[(1, 20817420), (2, 10408710), (3, 6939140), (4, 5204355), (5, 4163484), (6, 3469570), (10, 2081742), (12, 1734785), (13, 1601340), (15, 1387828), (20, 1040871), (26, 800670), (30, 693914), (39, 533780), (52, 400335), (60, 346957), (65, 320268), (78, 266890), (130, 160134), (156, 133445), (169, 123180), (195, 106756), (260, 80067), (338, 61590), (390, 53378), (507, 41060), (676, 30795), (780, 26689), (845, 24636), (1014, 20530), (1690, 12318), (2028, 10265), (2053, 10140), (2535, 8212), (3380, 6159), (4106, 5070)]