387940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:196

約数の個数: 48

約数和(自身を含む): 991872

約数和(自身を除く): 603932

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 85, 119, 140, 163, 170, 238, 326, 340, 476, 595, 652, 815, 1141, 1190, 1630, 2282, 2380, 2771, 3260, 4564, 5542, 5705, 11084, 11410, 13855, 19397, 22820, 27710, 38794, 55420, 77588, 96985, 193970, 387940]

約数ペア:

[(1, 387940), (2, 193970), (4, 96985), (5, 77588), (7, 55420), (10, 38794), (14, 27710), (17, 22820), (20, 19397), (28, 13855), (34, 11410), (35, 11084), (68, 5705), (70, 5542), (85, 4564), (119, 3260), (140, 2771), (163, 2380), (170, 2282), (238, 1630), (326, 1190), (340, 1141), (476, 815), (595, 652)]