29887640

素因数分解:

$2^3\times 5^1\times {\mathrm{97}}^1\times {\mathrm{7703}}^1$

素因数の和:7811

約数の個数: 32

約数和(自身を含む): 67949280

約数和(自身を除く): 38061640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 97, 194, 388, 485, 776, 970, 1940, 3880, 7703, 15406, 30812, 38515, 61624, 77030, 154060, 308120, 747191, 1494382, 2988764, 3735955, 5977528, 7471910, 14943820, 29887640]

約数ペア:

[(1, 29887640), (2, 14943820), (4, 7471910), (5, 5977528), (8, 3735955), (10, 2988764), (20, 1494382), (40, 747191), (97, 308120), (194, 154060), (388, 77030), (485, 61624), (776, 38515), (970, 30812), (1940, 15406), (3880, 7703)]