128372920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{1427}}^1$

素因数の和:1624

約数の個数: 64

約数和(自身を含む): 313074720

約数和(自身を除く): 184701800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 173, 260, 346, 520, 692, 865, 1384, 1427, 1730, 2249, 2854, 3460, 4498, 5708, 6920, 7135, 8996, 11245, 11416, 14270, 17992, 18551, 22490, 28540, 37102, 44980, 57080, 74204, 89960, 92755, 148408, 185510, 246871, 371020, 493742, 742040, 987484, 1234355, 1974968, 2468710, 3209323, 4937420, 6418646, 9874840, 12837292, 16046615, 25674584, 32093230, 64186460, 128372920]

約数ペア:

[(1, 128372920), (2, 64186460), (4, 32093230), (5, 25674584), (8, 16046615), (10, 12837292), (13, 9874840), (20, 6418646), (26, 4937420), (40, 3209323), (52, 2468710), (65, 1974968), (104, 1234355), (130, 987484), (173, 742040), (260, 493742), (346, 371020), (520, 246871), (692, 185510), (865, 148408), (1384, 92755), (1427, 89960), (1730, 74204), (2249, 57080), (2854, 44980), (3460, 37102), (4498, 28540), (5708, 22490), (6920, 18551), (7135, 17992), (8996, 14270), (11245, 11416)]