261796275

素因数分解:

$3^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 540277920

約数和(自身を除く): 278481645

約数列:

[1, 3, 5, 9, 13, 15, 25, 37, 39, 41, 45, 59, 65, 75, 111, 117, 123, 177, 185, 195, 205, 225, 295, 325, 333, 369, 481, 531, 533, 555, 585, 615, 767, 885, 925, 975, 1025, 1443, 1475, 1517, 1599, 1665, 1845, 2183, 2301, 2405, 2419, 2655, 2665, 2775, 2925, 3075, 3835, 4329, 4425, 4551, 4797, 6549, 6903, 7215, 7257, 7585, 7995, 8325, 9225, 10915, 11505, 12025, 12095, 13275, 13325, 13653, 19175, 19647, 19721, 21645, 21771, 22755, 23985, 28379, 31447, 32745, 34515, 36075, 36285, 37925, 39975, 54575, 57525, 59163, 60475, 68265, 85137, 89503, 94341, 98235, 98605, 108225, 108855, 113775, 119925, 141895, 157235, 163725, 172575, 177489, 181425, 255411, 268509, 283023, 295815, 341325, 425685, 447515, 471705, 491175, 493025, 544275, 709475, 786175, 805527, 887445, 1163539, 1277055, 1342545, 1415115, 1479075, 2128425, 2237575, 2358525, 3490617, 4027635, 4437225, 5817695, 6385275, 6712725, 7075575, 10471851, 17453085, 20138175, 29088475, 52359255, 87265425, 261796275]

約数ペア:

[(1, 261796275), (3, 87265425), (5, 52359255), (9, 29088475), (13, 20138175), (15, 17453085), (25, 10471851), (37, 7075575), (39, 6712725), (41, 6385275), (45, 5817695), (59, 4437225), (65, 4027635), (75, 3490617), (111, 2358525), (117, 2237575), (123, 2128425), (177, 1479075), (185, 1415115), (195, 1342545), (205, 1277055), (225, 1163539), (295, 887445), (325, 805527), (333, 786175), (369, 709475), (481, 544275), (531, 493025), (533, 491175), (555, 471705), (585, 447515), (615, 425685), (767, 341325), (885, 295815), (925, 283023), (975, 268509), (1025, 255411), (1443, 181425), (1475, 177489), (1517, 172575), (1599, 163725), (1665, 157235), (1845, 141895), (2183, 119925), (2301, 113775), (2405, 108855), (2419, 108225), (2655, 98605), (2665, 98235), (2775, 94341), (2925, 89503), (3075, 85137), (3835, 68265), (4329, 60475), (4425, 59163), (4551, 57525), (4797, 54575), (6549, 39975), (6903, 37925), (7215, 36285), (7257, 36075), (7585, 34515), (7995, 32745), (8325, 31447), (9225, 28379), (10915, 23985), (11505, 22755), (12025, 21771), (12095, 21645), (13275, 19721), (13325, 19647), (13653, 19175)]