19503276

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{59}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 72

約数和(自身を含む): 50420160

約数和(自身を除く): 30916884

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 59, 78, 118, 156, 163, 169, 177, 236, 326, 338, 354, 489, 507, 652, 676, 708, 767, 978, 1014, 1534, 1956, 2028, 2119, 2301, 3068, 4238, 4602, 6357, 8476, 9204, 9617, 9971, 12714, 19234, 19942, 25428, 27547, 28851, 29913, 38468, 39884, 55094, 57702, 59826, 82641, 110188, 115404, 119652, 125021, 165282, 250042, 330564, 375063, 500084, 750126, 1500252, 1625273, 3250546, 4875819, 6501092, 9751638, 19503276]

約数ペア:

[(1, 19503276), (2, 9751638), (3, 6501092), (4, 4875819), (6, 3250546), (12, 1625273), (13, 1500252), (26, 750126), (39, 500084), (52, 375063), (59, 330564), (78, 250042), (118, 165282), (156, 125021), (163, 119652), (169, 115404), (177, 110188), (236, 82641), (326, 59826), (338, 57702), (354, 55094), (489, 39884), (507, 38468), (652, 29913), (676, 28851), (708, 27547), (767, 25428), (978, 19942), (1014, 19234), (1534, 12714), (1956, 9971), (2028, 9617), (2119, 9204), (2301, 8476), (3068, 6357), (4238, 4602)]