207801680

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{83791}}^1$

素因数の和:83835

約数の個数: 40

約数和(自身を含む): 498729984

約数和(自身を除く): 290928304

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 83791, 167582, 335164, 418955, 670328, 837910, 1340656, 1675820, 2597521, 3351640, 5195042, 6703280, 10390084, 12987605, 20780168, 25975210, 41560336, 51950420, 103900840, 207801680]

約数ペア:

[(1, 207801680), (2, 103900840), (4, 51950420), (5, 41560336), (8, 25975210), (10, 20780168), (16, 12987605), (20, 10390084), (31, 6703280), (40, 5195042), (62, 3351640), (80, 2597521), (124, 1675820), (155, 1340656), (248, 837910), (310, 670328), (496, 418955), (620, 335164), (1240, 167582), (2480, 83791)]