8428980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:134

約数の個数: 144

約数和(自身を含む): 28498176

約数和(自身を除く): 20069196

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 49, 60, 61, 70, 84, 94, 98, 105, 122, 140, 141, 147, 183, 188, 196, 210, 235, 244, 245, 282, 294, 305, 329, 366, 420, 427, 470, 490, 564, 588, 610, 658, 705, 732, 735, 854, 915, 940, 980, 987, 1220, 1281, 1316, 1410, 1470, 1645, 1708, 1830, 1974, 2135, 2303, 2562, 2820, 2867, 2940, 2989, 3290, 3660, 3948, 4270, 4606, 4935, 5124, 5734, 5978, 6405, 6580, 6909, 8540, 8601, 8967, 9212, 9870, 11468, 11515, 11956, 12810, 13818, 14335, 14945, 17202, 17934, 19740, 20069, 23030, 25620, 27636, 28670, 29890, 34404, 34545, 35868, 40138, 43005, 44835, 46060, 57340, 59780, 60207, 69090, 80276, 86010, 89670, 100345, 120414, 138180, 140483, 172020, 179340, 200690, 240828, 280966, 301035, 401380, 421449, 561932, 602070, 702415, 842898, 1204140, 1404830, 1685796, 2107245, 2809660, 4214490, 8428980]

約数ペア:

[(1, 8428980), (2, 4214490), (3, 2809660), (4, 2107245), (5, 1685796), (6, 1404830), (7, 1204140), (10, 842898), (12, 702415), (14, 602070), (15, 561932), (20, 421449), (21, 401380), (28, 301035), (30, 280966), (35, 240828), (42, 200690), (47, 179340), (49, 172020), (60, 140483), (61, 138180), (70, 120414), (84, 100345), (94, 89670), (98, 86010), (105, 80276), (122, 69090), (140, 60207), (141, 59780), (147, 57340), (183, 46060), (188, 44835), (196, 43005), (210, 40138), (235, 35868), (244, 34545), (245, 34404), (282, 29890), (294, 28670), (305, 27636), (329, 25620), (366, 23030), (420, 20069), (427, 19740), (470, 17934), (490, 17202), (564, 14945), (588, 14335), (610, 13818), (658, 12810), (705, 11956), (732, 11515), (735, 11468), (854, 9870), (915, 9212), (940, 8967), (980, 8601), (987, 8540), (1220, 6909), (1281, 6580), (1316, 6405), (1410, 5978), (1470, 5734), (1645, 5124), (1708, 4935), (1830, 4606), (1974, 4270), (2135, 3948), (2303, 3660), (2562, 3290), (2820, 2989), (2867, 2940)]