25387760

素因数分解:

$2^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{353}}^1$

素因数の和:426

約数の個数: 80

約数和(自身を含む): 63210240

約数和(自身を除く): 37822480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 29, 31, 40, 58, 62, 80, 116, 124, 145, 155, 232, 248, 290, 310, 353, 464, 496, 580, 620, 706, 899, 1160, 1240, 1412, 1765, 1798, 2320, 2480, 2824, 3530, 3596, 4495, 5648, 7060, 7192, 8990, 10237, 10943, 14120, 14384, 17980, 20474, 21886, 28240, 35960, 40948, 43772, 51185, 54715, 71920, 81896, 87544, 102370, 109430, 163792, 175088, 204740, 218860, 317347, 409480, 437720, 634694, 818960, 875440, 1269388, 1586735, 2538776, 3173470, 5077552, 6346940, 12693880, 25387760]

約数ペア:

[(1, 25387760), (2, 12693880), (4, 6346940), (5, 5077552), (8, 3173470), (10, 2538776), (16, 1586735), (20, 1269388), (29, 875440), (31, 818960), (40, 634694), (58, 437720), (62, 409480), (80, 317347), (116, 218860), (124, 204740), (145, 175088), (155, 163792), (232, 109430), (248, 102370), (290, 87544), (310, 81896), (353, 71920), (464, 54715), (496, 51185), (580, 43772), (620, 40948), (706, 35960), (899, 28240), (1160, 21886), (1240, 20474), (1412, 17980), (1765, 14384), (1798, 14120), (2320, 10943), (2480, 10237), (2824, 8990), (3530, 7192), (3596, 7060), (4495, 5648)]