281472880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^2\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:339

約数の個数: 120

約数和(自身を含む): 718882560

約数和(自身を除く): 437409680

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 109, 130, 169, 191, 208, 218, 260, 338, 382, 436, 520, 545, 676, 764, 845, 872, 955, 1040, 1090, 1352, 1417, 1528, 1690, 1744, 1910, 2180, 2483, 2704, 2834, 3056, 3380, 3820, 4360, 4966, 5668, 6760, 7085, 7640, 8720, 9932, 11336, 12415, 13520, 14170, 15280, 18421, 19864, 20819, 22672, 24830, 28340, 32279, 36842, 39728, 41638, 49660, 56680, 64558, 73684, 83276, 92105, 99320, 104095, 113360, 129116, 147368, 161395, 166552, 184210, 198640, 208190, 258232, 270647, 294736, 322790, 333104, 368420, 416380, 516464, 541294, 645580, 736840, 832760, 1082588, 1291160, 1353235, 1473680, 1665520, 2165176, 2582320, 2706470, 3518411, 4330352, 5412940, 7036822, 10825880, 14073644, 17592055, 21651760, 28147288, 35184110, 56294576, 70368220, 140736440, 281472880]

約数ペア:

[(1, 281472880), (2, 140736440), (4, 70368220), (5, 56294576), (8, 35184110), (10, 28147288), (13, 21651760), (16, 17592055), (20, 14073644), (26, 10825880), (40, 7036822), (52, 5412940), (65, 4330352), (80, 3518411), (104, 2706470), (109, 2582320), (130, 2165176), (169, 1665520), (191, 1473680), (208, 1353235), (218, 1291160), (260, 1082588), (338, 832760), (382, 736840), (436, 645580), (520, 541294), (545, 516464), (676, 416380), (764, 368420), (845, 333104), (872, 322790), (955, 294736), (1040, 270647), (1090, 258232), (1352, 208190), (1417, 198640), (1528, 184210), (1690, 166552), (1744, 161395), (1910, 147368), (2180, 129116), (2483, 113360), (2704, 104095), (2834, 99320), (3056, 92105), (3380, 83276), (3820, 73684), (4360, 64558), (4966, 56680), (5668, 49660), (6760, 41638), (7085, 39728), (7640, 36842), (8720, 32279), (9932, 28340), (11336, 24830), (12415, 22672), (13520, 20819), (14170, 19864), (15280, 18421)]