25475840

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1531}}^1$

素因数の和:1565

約数の個数: 72

約数和(自身を含む): 65759568

約数和(自身を除く): 40283728

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 80, 104, 128, 130, 160, 208, 256, 260, 320, 416, 520, 640, 832, 1040, 1280, 1531, 1664, 2080, 3062, 3328, 4160, 6124, 7655, 8320, 12248, 15310, 16640, 19903, 24496, 30620, 39806, 48992, 61240, 79612, 97984, 99515, 122480, 159224, 195968, 199030, 244960, 318448, 391936, 398060, 489920, 636896, 796120, 979840, 1273792, 1592240, 1959680, 2547584, 3184480, 5095168, 6368960, 12737920, 25475840]

約数ペア:

[(1, 25475840), (2, 12737920), (4, 6368960), (5, 5095168), (8, 3184480), (10, 2547584), (13, 1959680), (16, 1592240), (20, 1273792), (26, 979840), (32, 796120), (40, 636896), (52, 489920), (64, 398060), (65, 391936), (80, 318448), (104, 244960), (128, 199030), (130, 195968), (160, 159224), (208, 122480), (256, 99515), (260, 97984), (320, 79612), (416, 61240), (520, 48992), (640, 39806), (832, 30620), (1040, 24496), (1280, 19903), (1531, 16640), (1664, 15310), (2080, 12248), (3062, 8320), (3328, 7655), (4160, 6124)]