1261000

素因数分解:

$2^3\times 5^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:131

約数の個数: 64

約数和(自身を含む): 3210480

約数和(自身を除く): 1949480

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 97, 100, 104, 125, 130, 194, 200, 250, 260, 325, 388, 485, 500, 520, 650, 776, 970, 1000, 1261, 1300, 1625, 1940, 2425, 2522, 2600, 3250, 3880, 4850, 5044, 6305, 6500, 9700, 10088, 12125, 12610, 13000, 19400, 24250, 25220, 31525, 48500, 50440, 63050, 97000, 126100, 157625, 252200, 315250, 630500, 1261000]

約数ペア:

[(1, 1261000), (2, 630500), (4, 315250), (5, 252200), (8, 157625), (10, 126100), (13, 97000), (20, 63050), (25, 50440), (26, 48500), (40, 31525), (50, 25220), (52, 24250), (65, 19400), (97, 13000), (100, 12610), (104, 12125), (125, 10088), (130, 9700), (194, 6500), (200, 6305), (250, 5044), (260, 4850), (325, 3880), (388, 3250), (485, 2600), (500, 2522), (520, 2425), (650, 1940), (776, 1625), (970, 1300), (1000, 1261)]