165912500

素因数分解:

$2^2\times 5^5\times {\mathrm{13}}^1\times {\mathrm{1021}}^1$

素因数の和:1063

約数の個数: 72

約数和(自身を含む): 391209336

約数和(自身を除く): 225296836

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 125, 130, 250, 260, 325, 500, 625, 650, 1021, 1250, 1300, 1625, 2042, 2500, 3125, 3250, 4084, 5105, 6250, 6500, 8125, 10210, 12500, 13273, 16250, 20420, 25525, 26546, 32500, 40625, 51050, 53092, 66365, 81250, 102100, 127625, 132730, 162500, 255250, 265460, 331825, 510500, 638125, 663650, 1276250, 1327300, 1659125, 2552500, 3190625, 3318250, 6381250, 6636500, 8295625, 12762500, 16591250, 33182500, 41478125, 82956250, 165912500]

約数ペア:

[(1, 165912500), (2, 82956250), (4, 41478125), (5, 33182500), (10, 16591250), (13, 12762500), (20, 8295625), (25, 6636500), (26, 6381250), (50, 3318250), (52, 3190625), (65, 2552500), (100, 1659125), (125, 1327300), (130, 1276250), (250, 663650), (260, 638125), (325, 510500), (500, 331825), (625, 265460), (650, 255250), (1021, 162500), (1250, 132730), (1300, 127625), (1625, 102100), (2042, 81250), (2500, 66365), (3125, 53092), (3250, 51050), (4084, 40625), (5105, 32500), (6250, 26546), (6500, 25525), (8125, 20420), (10210, 16250), (12500, 13273)]