25739920

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:248

約数の個数: 80

約数和(自身を含む): 62995968

約数和(自身を除く): 37256048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 97, 107, 124, 155, 194, 214, 248, 310, 388, 428, 485, 496, 535, 620, 776, 856, 970, 1070, 1240, 1552, 1712, 1940, 2140, 2480, 3007, 3317, 3880, 4280, 6014, 6634, 7760, 8560, 10379, 12028, 13268, 15035, 16585, 20758, 24056, 26536, 30070, 33170, 41516, 48112, 51895, 53072, 60140, 66340, 83032, 103790, 120280, 132680, 166064, 207580, 240560, 265360, 321749, 415160, 643498, 830320, 1286996, 1608745, 2573992, 3217490, 5147984, 6434980, 12869960, 25739920]

約数ペア:

[(1, 25739920), (2, 12869960), (4, 6434980), (5, 5147984), (8, 3217490), (10, 2573992), (16, 1608745), (20, 1286996), (31, 830320), (40, 643498), (62, 415160), (80, 321749), (97, 265360), (107, 240560), (124, 207580), (155, 166064), (194, 132680), (214, 120280), (248, 103790), (310, 83032), (388, 66340), (428, 60140), (485, 53072), (496, 51895), (535, 48112), (620, 41516), (776, 33170), (856, 30070), (970, 26536), (1070, 24056), (1240, 20758), (1552, 16585), (1712, 15035), (1940, 13268), (2140, 12028), (2480, 10379), (3007, 8560), (3317, 7760), (3880, 6634), (4280, 6014)]