79758040

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1\times {\mathrm{491}}^1$

素因数の和:664

約数の個数: 64

約数和(自身を含む): 187038720

約数和(自身を除く): 107280680

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 131, 155, 248, 262, 310, 491, 524, 620, 655, 982, 1048, 1240, 1310, 1964, 2455, 2620, 3928, 4061, 4910, 5240, 8122, 9820, 15221, 16244, 19640, 20305, 30442, 32488, 40610, 60884, 64321, 76105, 81220, 121768, 128642, 152210, 162440, 257284, 304420, 321605, 514568, 608840, 643210, 1286420, 1993951, 2572840, 3987902, 7975804, 9969755, 15951608, 19939510, 39879020, 79758040]

約数ペア:

[(1, 79758040), (2, 39879020), (4, 19939510), (5, 15951608), (8, 9969755), (10, 7975804), (20, 3987902), (31, 2572840), (40, 1993951), (62, 1286420), (124, 643210), (131, 608840), (155, 514568), (248, 321605), (262, 304420), (310, 257284), (491, 162440), (524, 152210), (620, 128642), (655, 121768), (982, 81220), (1048, 76105), (1240, 64321), (1310, 60884), (1964, 40610), (2455, 32488), (2620, 30442), (3928, 20305), (4061, 19640), (4910, 16244), (5240, 15221), (8122, 9820)]