39684640

素因数分解:

$2^5\times 5^1\times {\mathrm{97}}^1\times {\mathrm{2557}}^1$

素因数の和:2669

約数の個数: 48

約数和(自身を含む): 94758552

約数和(自身を除く): 55073912

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 97, 160, 194, 388, 485, 776, 970, 1552, 1940, 2557, 3104, 3880, 5114, 7760, 10228, 12785, 15520, 20456, 25570, 40912, 51140, 81824, 102280, 204560, 248029, 409120, 496058, 992116, 1240145, 1984232, 2480290, 3968464, 4960580, 7936928, 9921160, 19842320, 39684640]

約数ペア:

[(1, 39684640), (2, 19842320), (4, 9921160), (5, 7936928), (8, 4960580), (10, 3968464), (16, 2480290), (20, 1984232), (32, 1240145), (40, 992116), (80, 496058), (97, 409120), (160, 248029), (194, 204560), (388, 102280), (485, 81824), (776, 51140), (970, 40912), (1552, 25570), (1940, 20456), (2557, 15520), (3104, 12785), (3880, 10228), (5114, 7760)]