25247720

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{347}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 60886080

約数和(自身を除く): 35638360

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 107, 136, 170, 214, 340, 347, 428, 535, 680, 694, 856, 1070, 1388, 1735, 1819, 2140, 2776, 3470, 3638, 4280, 5899, 6940, 7276, 9095, 11798, 13880, 14552, 18190, 23596, 29495, 36380, 37129, 47192, 58990, 72760, 74258, 117980, 148516, 185645, 235960, 297032, 371290, 631193, 742580, 1262386, 1485160, 2524772, 3155965, 5049544, 6311930, 12623860, 25247720]

約数ペア:

[(1, 25247720), (2, 12623860), (4, 6311930), (5, 5049544), (8, 3155965), (10, 2524772), (17, 1485160), (20, 1262386), (34, 742580), (40, 631193), (68, 371290), (85, 297032), (107, 235960), (136, 185645), (170, 148516), (214, 117980), (340, 74258), (347, 72760), (428, 58990), (535, 47192), (680, 37129), (694, 36380), (856, 29495), (1070, 23596), (1388, 18190), (1735, 14552), (1819, 13880), (2140, 11798), (2776, 9095), (3470, 7276), (3638, 6940), (4280, 5899)]