31703080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{691}}^1$

素因数の和:770

約数の個数: 64

約数和(自身を含む): 75732480

約数和(自身を除く): 44029400

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 37, 40, 62, 74, 124, 148, 155, 185, 248, 296, 310, 370, 620, 691, 740, 1147, 1240, 1382, 1480, 2294, 2764, 3455, 4588, 5528, 5735, 6910, 9176, 11470, 13820, 21421, 22940, 25567, 27640, 42842, 45880, 51134, 85684, 102268, 107105, 127835, 171368, 204536, 214210, 255670, 428420, 511340, 792577, 856840, 1022680, 1585154, 3170308, 3962885, 6340616, 7925770, 15851540, 31703080]

約数ペア:

[(1, 31703080), (2, 15851540), (4, 7925770), (5, 6340616), (8, 3962885), (10, 3170308), (20, 1585154), (31, 1022680), (37, 856840), (40, 792577), (62, 511340), (74, 428420), (124, 255670), (148, 214210), (155, 204536), (185, 171368), (248, 127835), (296, 107105), (310, 102268), (370, 85684), (620, 51134), (691, 45880), (740, 42842), (1147, 27640), (1240, 25567), (1382, 22940), (1480, 21421), (2294, 13820), (2764, 11470), (3455, 9176), (4588, 6910), (5528, 5735)]