19917660

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1009}}^1$

素因数の和:1075

約数の個数: 96

約数和(自身を含む): 65157120

約数和(自身を除く): 45239460

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 47, 60, 70, 84, 94, 105, 140, 141, 188, 210, 235, 282, 329, 420, 470, 564, 658, 705, 940, 987, 1009, 1316, 1410, 1645, 1974, 2018, 2820, 3027, 3290, 3948, 4036, 4935, 5045, 6054, 6580, 7063, 9870, 10090, 12108, 14126, 15135, 19740, 20180, 21189, 28252, 30270, 35315, 42378, 47423, 60540, 70630, 84756, 94846, 105945, 141260, 142269, 189692, 211890, 237115, 284538, 331961, 423780, 474230, 569076, 663922, 711345, 948460, 995883, 1327844, 1422690, 1659805, 1991766, 2845380, 3319610, 3983532, 4979415, 6639220, 9958830, 19917660]

約数ペア:

[(1, 19917660), (2, 9958830), (3, 6639220), (4, 4979415), (5, 3983532), (6, 3319610), (7, 2845380), (10, 1991766), (12, 1659805), (14, 1422690), (15, 1327844), (20, 995883), (21, 948460), (28, 711345), (30, 663922), (35, 569076), (42, 474230), (47, 423780), (60, 331961), (70, 284538), (84, 237115), (94, 211890), (105, 189692), (140, 142269), (141, 141260), (188, 105945), (210, 94846), (235, 84756), (282, 70630), (329, 60540), (420, 47423), (470, 42378), (564, 35315), (658, 30270), (705, 28252), (940, 21189), (987, 20180), (1009, 19740), (1316, 15135), (1410, 14126), (1645, 12108), (1974, 10090), (2018, 9870), (2820, 7063), (3027, 6580), (3290, 6054), (3948, 5045), (4036, 4935)]