19547775

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{163}}^1$

素因数の和:233

約数の個数: 72

約数和(自身を含む): 38862096

約数和(自身を除く): 19314321

約数列:

[1, 3, 5, 9, 13, 15, 25, 39, 41, 45, 65, 75, 117, 123, 163, 195, 205, 225, 325, 369, 489, 533, 585, 615, 815, 975, 1025, 1467, 1599, 1845, 2119, 2445, 2665, 2925, 3075, 4075, 4797, 6357, 6683, 7335, 7995, 9225, 10595, 12225, 13325, 19071, 20049, 23985, 31785, 33415, 36675, 39975, 52975, 60147, 86879, 95355, 100245, 119925, 158925, 167075, 260637, 300735, 434395, 476775, 501225, 781911, 1303185, 1503675, 2171975, 3909555, 6515925, 19547775]

約数ペア:

[(1, 19547775), (3, 6515925), (5, 3909555), (9, 2171975), (13, 1503675), (15, 1303185), (25, 781911), (39, 501225), (41, 476775), (45, 434395), (65, 300735), (75, 260637), (117, 167075), (123, 158925), (163, 119925), (195, 100245), (205, 95355), (225, 86879), (325, 60147), (369, 52975), (489, 39975), (533, 36675), (585, 33415), (615, 31785), (815, 23985), (975, 20049), (1025, 19071), (1467, 13325), (1599, 12225), (1845, 10595), (2119, 9225), (2445, 7995), (2665, 7335), (2925, 6683), (3075, 6357), (4075, 4797)]