281735860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{911}}^1$

素因数の和:1021

約数の個数: 72

約数和(自身を含む): 691617024

約数和(自身を除く): 409881164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 911, 940, 1316, 1645, 1822, 2209, 3290, 3644, 4418, 4555, 6377, 6580, 8836, 9110, 11045, 12754, 15463, 18220, 22090, 25508, 30926, 31885, 42817, 44180, 61852, 63770, 77315, 85634, 127540, 154630, 171268, 214085, 299719, 309260, 428170, 599438, 856340, 1198876, 1498595, 2012399, 2997190, 4024798, 5994380, 8049596, 10061995, 14086793, 20123990, 28173586, 40247980, 56347172, 70433965, 140867930, 281735860]

約数ペア:

[(1, 281735860), (2, 140867930), (4, 70433965), (5, 56347172), (7, 40247980), (10, 28173586), (14, 20123990), (20, 14086793), (28, 10061995), (35, 8049596), (47, 5994380), (70, 4024798), (94, 2997190), (140, 2012399), (188, 1498595), (235, 1198876), (329, 856340), (470, 599438), (658, 428170), (911, 309260), (940, 299719), (1316, 214085), (1645, 171268), (1822, 154630), (2209, 127540), (3290, 85634), (3644, 77315), (4418, 63770), (4555, 61852), (6377, 44180), (6580, 42817), (8836, 31885), (9110, 30926), (11045, 25508), (12754, 22090), (15463, 18220)]