25987780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 96

約数和(自身を含む): 68302080

約数和(自身を除く): 42314300

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 52, 65, 70, 91, 109, 130, 131, 140, 182, 218, 260, 262, 364, 436, 455, 524, 545, 655, 763, 910, 917, 1090, 1310, 1417, 1526, 1703, 1820, 1834, 2180, 2620, 2834, 3052, 3406, 3668, 3815, 4585, 5668, 6812, 7085, 7630, 8515, 9170, 9919, 11921, 14170, 14279, 15260, 17030, 18340, 19838, 23842, 28340, 28558, 34060, 39676, 47684, 49595, 57116, 59605, 71395, 99190, 99953, 119210, 142790, 185627, 198380, 199906, 238420, 285580, 371254, 399812, 499765, 742508, 928135, 999530, 1299389, 1856270, 1999060, 2598778, 3712540, 5197556, 6496945, 12993890, 25987780]

約数ペア:

[(1, 25987780), (2, 12993890), (4, 6496945), (5, 5197556), (7, 3712540), (10, 2598778), (13, 1999060), (14, 1856270), (20, 1299389), (26, 999530), (28, 928135), (35, 742508), (52, 499765), (65, 399812), (70, 371254), (91, 285580), (109, 238420), (130, 199906), (131, 198380), (140, 185627), (182, 142790), (218, 119210), (260, 99953), (262, 99190), (364, 71395), (436, 59605), (455, 57116), (524, 49595), (545, 47684), (655, 39676), (763, 34060), (910, 28558), (917, 28340), (1090, 23842), (1310, 19838), (1417, 18340), (1526, 17030), (1703, 15260), (1820, 14279), (1834, 14170), (2180, 11921), (2620, 9919), (2834, 9170), (3052, 8515), (3406, 7630), (3668, 7085), (3815, 6812), (4585, 5668)]