28219660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{167}}^1$

素因数の和:271

約数の個数: 96

約数和(自身を含む): 73156608

約数和(自身を除く): 44936948

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 20, 28, 34, 35, 68, 70, 71, 85, 119, 140, 142, 167, 170, 238, 284, 334, 340, 355, 476, 497, 595, 668, 710, 835, 994, 1169, 1190, 1207, 1420, 1670, 1988, 2338, 2380, 2414, 2485, 2839, 3340, 4676, 4828, 4970, 5678, 5845, 6035, 8449, 9940, 11356, 11690, 11857, 12070, 14195, 16898, 19873, 23380, 23714, 24140, 28390, 33796, 39746, 42245, 47428, 56780, 59285, 79492, 82999, 84490, 99365, 118570, 165998, 168980, 198730, 201569, 237140, 331996, 397460, 403138, 414995, 806276, 829990, 1007845, 1410983, 1659980, 2015690, 2821966, 4031380, 5643932, 7054915, 14109830, 28219660]

約数ペア:

[(1, 28219660), (2, 14109830), (4, 7054915), (5, 5643932), (7, 4031380), (10, 2821966), (14, 2015690), (17, 1659980), (20, 1410983), (28, 1007845), (34, 829990), (35, 806276), (68, 414995), (70, 403138), (71, 397460), (85, 331996), (119, 237140), (140, 201569), (142, 198730), (167, 168980), (170, 165998), (238, 118570), (284, 99365), (334, 84490), (340, 82999), (355, 79492), (476, 59285), (497, 56780), (595, 47428), (668, 42245), (710, 39746), (835, 33796), (994, 28390), (1169, 24140), (1190, 23714), (1207, 23380), (1420, 19873), (1670, 16898), (1988, 14195), (2338, 12070), (2380, 11857), (2414, 11690), (2485, 11356), (2839, 9940), (3340, 8449), (4676, 6035), (4828, 5845), (4970, 5678)]