31461040

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^3\times {\mathrm{179}}^1$

素因数の和:231

約数の個数: 80

約数和(自身を含む): 79682400

約数和(自身を除く): 48221360

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 169, 179, 208, 260, 338, 358, 520, 676, 716, 845, 895, 1040, 1352, 1432, 1690, 1790, 2197, 2327, 2704, 2864, 3380, 3580, 4394, 4654, 6760, 7160, 8788, 9308, 10985, 11635, 13520, 14320, 17576, 18616, 21970, 23270, 30251, 35152, 37232, 43940, 46540, 60502, 87880, 93080, 121004, 151255, 175760, 186160, 242008, 302510, 393263, 484016, 605020, 786526, 1210040, 1573052, 1966315, 2420080, 3146104, 3932630, 6292208, 7865260, 15730520, 31461040]

約数ペア:

[(1, 31461040), (2, 15730520), (4, 7865260), (5, 6292208), (8, 3932630), (10, 3146104), (13, 2420080), (16, 1966315), (20, 1573052), (26, 1210040), (40, 786526), (52, 605020), (65, 484016), (80, 393263), (104, 302510), (130, 242008), (169, 186160), (179, 175760), (208, 151255), (260, 121004), (338, 93080), (358, 87880), (520, 60502), (676, 46540), (716, 43940), (845, 37232), (895, 35152), (1040, 30251), (1352, 23270), (1432, 21970), (1690, 18616), (1790, 17576), (2197, 14320), (2327, 13520), (2704, 11635), (2864, 10985), (3380, 9308), (3580, 8788), (4394, 7160), (4654, 6760)]