1628740

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 3677184

約数和(自身を除く): 2048444

約数列:

[1, 2, 4, 5, 10, 20, 31, 37, 62, 71, 74, 124, 142, 148, 155, 185, 284, 310, 355, 370, 620, 710, 740, 1147, 1420, 2201, 2294, 2627, 4402, 4588, 5254, 5735, 8804, 10508, 11005, 11470, 13135, 22010, 22940, 26270, 44020, 52540, 81437, 162874, 325748, 407185, 814370, 1628740]

約数ペア:

[(1, 1628740), (2, 814370), (4, 407185), (5, 325748), (10, 162874), (20, 81437), (31, 52540), (37, 44020), (62, 26270), (71, 22940), (74, 22010), (124, 13135), (142, 11470), (148, 11005), (155, 10508), (185, 8804), (284, 5735), (310, 5254), (355, 4588), (370, 4402), (620, 2627), (710, 2294), (740, 2201), (1147, 1420)]