20945070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{4391}}^1$

素因数の和:4457

約数の個数: 48

約数和(自身を含む): 55497312

約数和(自身を除く): 34552242

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 53, 90, 106, 159, 265, 318, 477, 530, 795, 954, 1590, 2385, 4391, 4770, 8782, 13173, 21955, 26346, 39519, 43910, 65865, 79038, 131730, 197595, 232723, 395190, 465446, 698169, 1163615, 1396338, 2094507, 2327230, 3490845, 4189014, 6981690, 10472535, 20945070]

約数ペア:

[(1, 20945070), (2, 10472535), (3, 6981690), (5, 4189014), (6, 3490845), (9, 2327230), (10, 2094507), (15, 1396338), (18, 1163615), (30, 698169), (45, 465446), (53, 395190), (90, 232723), (106, 197595), (159, 131730), (265, 79038), (318, 65865), (477, 43910), (530, 39519), (795, 26346), (954, 21955), (1590, 13173), (2385, 8782), (4391, 4770)]