25451775

素因数分解:

$3^2\times 5^2\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1$

素因数の和:177

約数の個数: 72

約数和(自身を含む): 48746880

約数和(自身を除く): 23295105

約数列:

[1, 3, 5, 9, 15, 25, 31, 41, 45, 75, 89, 93, 123, 155, 205, 225, 267, 279, 369, 445, 465, 615, 775, 801, 1025, 1271, 1335, 1395, 1845, 2225, 2325, 2759, 3075, 3649, 3813, 4005, 6355, 6675, 6975, 8277, 9225, 10947, 11439, 13795, 18245, 19065, 20025, 24831, 31775, 32841, 41385, 54735, 57195, 68975, 91225, 95325, 113119, 124155, 164205, 206925, 273675, 285975, 339357, 565595, 620775, 821025, 1018071, 1696785, 2827975, 5090355, 8483925, 25451775]

約数ペア:

[(1, 25451775), (3, 8483925), (5, 5090355), (9, 2827975), (15, 1696785), (25, 1018071), (31, 821025), (41, 620775), (45, 565595), (75, 339357), (89, 285975), (93, 273675), (123, 206925), (155, 164205), (205, 124155), (225, 113119), (267, 95325), (279, 91225), (369, 68975), (445, 57195), (465, 54735), (615, 41385), (775, 32841), (801, 31775), (1025, 24831), (1271, 20025), (1335, 19065), (1395, 18245), (1845, 13795), (2225, 11439), (2325, 10947), (2759, 9225), (3075, 8277), (3649, 6975), (3813, 6675), (4005, 6355)]