65789980

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1693}}^1$

素因数の和:1798

約数の個数: 48

約数和(自身を含む): 145141920

約数和(自身を除く): 79351940

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 67, 116, 134, 145, 268, 290, 335, 580, 670, 1340, 1693, 1943, 3386, 3886, 6772, 7772, 8465, 9715, 16930, 19430, 33860, 38860, 49097, 98194, 113431, 196388, 226862, 245485, 453724, 490970, 567155, 981940, 1134310, 2268620, 3289499, 6578998, 13157996, 16447495, 32894990, 65789980]

約数ペア:

[(1, 65789980), (2, 32894990), (4, 16447495), (5, 13157996), (10, 6578998), (20, 3289499), (29, 2268620), (58, 1134310), (67, 981940), (116, 567155), (134, 490970), (145, 453724), (268, 245485), (290, 226862), (335, 196388), (580, 113431), (670, 98194), (1340, 49097), (1693, 38860), (1943, 33860), (3386, 19430), (3886, 16930), (6772, 9715), (7772, 8465)]