1989540

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{1579}}^1$

素因数の和:1601

約数の個数: 72

約数和(自身を含む): 6901440

約数和(自身を除く): 4911900

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 1579, 3158, 4737, 6316, 7895, 9474, 11053, 14211, 15790, 18948, 22106, 23685, 28422, 31580, 33159, 44212, 47370, 55265, 56844, 66318, 71055, 94740, 99477, 110530, 132636, 142110, 165795, 198954, 221060, 284220, 331590, 397908, 497385, 663180, 994770, 1989540]

約数ペア:

[(1, 1989540), (2, 994770), (3, 663180), (4, 497385), (5, 397908), (6, 331590), (7, 284220), (9, 221060), (10, 198954), (12, 165795), (14, 142110), (15, 132636), (18, 110530), (20, 99477), (21, 94740), (28, 71055), (30, 66318), (35, 56844), (36, 55265), (42, 47370), (45, 44212), (60, 33159), (63, 31580), (70, 28422), (84, 23685), (90, 22106), (105, 18948), (126, 15790), (140, 14211), (180, 11053), (210, 9474), (252, 7895), (315, 6316), (420, 4737), (630, 3158), (1260, 1579)]