404150500

素因数分解:

$2^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{641}}^1$

素因数の和:770

約数の個数: 96

約数和(自身を含む): 961859808

約数和(自身を除く): 557709308

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, 641, 650, 970, 1261, 1282, 1300, 1625, 1940, 2425, 2522, 2564, 3205, 3250, 4850, 5044, 6305, 6410, 6500, 8333, 9700, 12125, 12610, 12820, 16025, 16666, 24250, 25220, 31525, 32050, 33332, 41665, 48500, 62177, 63050, 64100, 80125, 83330, 124354, 126100, 157625, 160250, 166660, 208325, 248708, 310885, 315250, 320500, 416650, 621770, 630500, 808301, 833300, 1041625, 1243540, 1554425, 1616602, 2083250, 3108850, 3233204, 4041505, 4166500, 6217700, 7772125, 8083010, 15544250, 16166020, 20207525, 31088500, 40415050, 80830100, 101037625, 202075250, 404150500]

約数ペア:

[(1, 404150500), (2, 202075250), (4, 101037625), (5, 80830100), (10, 40415050), (13, 31088500), (20, 20207525), (25, 16166020), (26, 15544250), (50, 8083010), (52, 7772125), (65, 6217700), (97, 4166500), (100, 4041505), (125, 3233204), (130, 3108850), (194, 2083250), (250, 1616602), (260, 1554425), (325, 1243540), (388, 1041625), (485, 833300), (500, 808301), (641, 630500), (650, 621770), (970, 416650), (1261, 320500), (1282, 315250), (1300, 310885), (1625, 248708), (1940, 208325), (2425, 166660), (2522, 160250), (2564, 157625), (3205, 126100), (3250, 124354), (4850, 83330), (5044, 80125), (6305, 64100), (6410, 63050), (6500, 62177), (8333, 48500), (9700, 41665), (12125, 33332), (12610, 32050), (12820, 31525), (16025, 25220), (16666, 24250)]