311326680

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{811}}^1$

素因数の和:1289

約数の個数: 128

約数和(自身を含む): 1071060480

約数和(自身を除く): 759733800

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 457, 811, 840, 914, 1371, 1622, 1828, 2285, 2433, 2742, 3199, 3244, 3656, 4055, 4570, 4866, 5484, 5677, 6398, 6488, 6855, 8110, 9140, 9597, 9732, 10968, 11354, 12165, 12796, 13710, 15995, 16220, 17031, 18280, 19194, 19464, 22708, 24330, 25592, 27420, 28385, 31990, 32440, 34062, 38388, 45416, 47985, 48660, 54840, 56770, 63980, 68124, 76776, 85155, 95970, 97320, 113540, 127960, 136248, 170310, 191940, 227080, 340620, 370627, 383880, 681240, 741254, 1111881, 1482508, 1853135, 2223762, 2594389, 2965016, 3706270, 4447524, 5188778, 5559405, 7412540, 7783167, 8895048, 10377556, 11118810, 12971945, 14825080, 15566334, 20755112, 22237620, 25943890, 31132668, 38915835, 44475240, 51887780, 62265336, 77831670, 103775560, 155663340, 311326680]

約数ペア:

[(1, 311326680), (2, 155663340), (3, 103775560), (4, 77831670), (5, 62265336), (6, 51887780), (7, 44475240), (8, 38915835), (10, 31132668), (12, 25943890), (14, 22237620), (15, 20755112), (20, 15566334), (21, 14825080), (24, 12971945), (28, 11118810), (30, 10377556), (35, 8895048), (40, 7783167), (42, 7412540), (56, 5559405), (60, 5188778), (70, 4447524), (84, 3706270), (105, 2965016), (120, 2594389), (140, 2223762), (168, 1853135), (210, 1482508), (280, 1111881), (420, 741254), (457, 681240), (811, 383880), (840, 370627), (914, 340620), (1371, 227080), (1622, 191940), (1828, 170310), (2285, 136248), (2433, 127960), (2742, 113540), (3199, 97320), (3244, 95970), (3656, 85155), (4055, 76776), (4570, 68124), (4866, 63980), (5484, 56770), (5677, 54840), (6398, 48660), (6488, 47985), (6855, 45416), (8110, 38388), (9140, 34062), (9597, 32440), (9732, 31990), (10968, 28385), (11354, 27420), (12165, 25592), (12796, 24330), (13710, 22708), (15995, 19464), (16220, 19194), (17031, 18280)]