131915680

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{63421}}^1$

素因数の和:63449

約数の個数: 48

約数和(自身を含む): 335629224

約数和(自身を除く): 203713544

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 416, 520, 1040, 2080, 63421, 126842, 253684, 317105, 507368, 634210, 824473, 1014736, 1268420, 1648946, 2029472, 2536840, 3297892, 4122365, 5073680, 6595784, 8244730, 10147360, 13191568, 16489460, 26383136, 32978920, 65957840, 131915680]

約数ペア:

[(1, 131915680), (2, 65957840), (4, 32978920), (5, 26383136), (8, 16489460), (10, 13191568), (13, 10147360), (16, 8244730), (20, 6595784), (26, 5073680), (32, 4122365), (40, 3297892), (52, 2536840), (65, 2029472), (80, 1648946), (104, 1268420), (130, 1014736), (160, 824473), (208, 634210), (260, 507368), (416, 317105), (520, 253684), (1040, 126842), (2080, 63421)]