80936440

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{491}}^1$

素因数の和:832

約数の個数: 64

約数和(自身を含む): 197134560

約数和(自身を除く): 116198120

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 317, 491, 520, 634, 982, 1268, 1585, 1964, 2455, 2536, 3170, 3928, 4121, 4910, 6340, 6383, 8242, 9820, 12680, 12766, 16484, 19640, 20605, 25532, 31915, 32968, 41210, 51064, 63830, 82420, 127660, 155647, 164840, 255320, 311294, 622588, 778235, 1245176, 1556470, 2023411, 3112940, 4046822, 6225880, 8093644, 10117055, 16187288, 20234110, 40468220, 80936440]

約数ペア:

[(1, 80936440), (2, 40468220), (4, 20234110), (5, 16187288), (8, 10117055), (10, 8093644), (13, 6225880), (20, 4046822), (26, 3112940), (40, 2023411), (52, 1556470), (65, 1245176), (104, 778235), (130, 622588), (260, 311294), (317, 255320), (491, 164840), (520, 155647), (634, 127660), (982, 82420), (1268, 63830), (1585, 51064), (1964, 41210), (2455, 32968), (2536, 31915), (3170, 25532), (3928, 20605), (4121, 19640), (4910, 16484), (6340, 12766), (6383, 12680), (8242, 9820)]