1978620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{673}}^1$

素因数の和:699

約数の個数: 72

約数和(自身を含む): 6454224

約数和(自身を除く): 4475604

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 673, 735, 980, 1346, 1470, 2019, 2692, 2940, 3365, 4038, 4711, 6730, 8076, 9422, 10095, 13460, 14133, 18844, 20190, 23555, 28266, 32977, 40380, 47110, 56532, 65954, 70665, 94220, 98931, 131908, 141330, 164885, 197862, 282660, 329770, 395724, 494655, 659540, 989310, 1978620]

約数ペア:

[(1, 1978620), (2, 989310), (3, 659540), (4, 494655), (5, 395724), (6, 329770), (7, 282660), (10, 197862), (12, 164885), (14, 141330), (15, 131908), (20, 98931), (21, 94220), (28, 70665), (30, 65954), (35, 56532), (42, 47110), (49, 40380), (60, 32977), (70, 28266), (84, 23555), (98, 20190), (105, 18844), (140, 14133), (147, 13460), (196, 10095), (210, 9422), (245, 8076), (294, 6730), (420, 4711), (490, 4038), (588, 3365), (673, 2940), (735, 2692), (980, 2019), (1346, 1470)]