630500

素因数分解:

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

素因数の和:129

約数の個数: 48

約数和(自身を含む): 1498224

約数和(自身を除く): 867724

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 97, 100, 125, 130, 194, 250, 260, 325, 388, 485, 500, 650, 970, 1261, 1300, 1625, 1940, 2425, 2522, 3250, 4850, 5044, 6305, 6500, 9700, 12125, 12610, 24250, 25220, 31525, 48500, 63050, 126100, 157625, 315250, 630500]

約数ペア:

[(1, 630500), (2, 315250), (4, 157625), (5, 126100), (10, 63050), (13, 48500), (20, 31525), (25, 25220), (26, 24250), (50, 12610), (52, 12125), (65, 9700), (97, 6500), (100, 6305), (125, 5044), (130, 4850), (194, 3250), (250, 2522), (260, 2425), (325, 1940), (388, 1625), (485, 1300), (500, 1261), (650, 970)]