20898780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2927}}^1$

素因数の和:2963

約数の個数: 96

約数和(自身を含む): 70834176

約数和(自身を除く): 49935396

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 51, 60, 68, 70, 84, 85, 102, 105, 119, 140, 170, 204, 210, 238, 255, 340, 357, 420, 476, 510, 595, 714, 1020, 1190, 1428, 1785, 2380, 2927, 3570, 5854, 7140, 8781, 11708, 14635, 17562, 20489, 29270, 35124, 40978, 43905, 49759, 58540, 61467, 81956, 87810, 99518, 102445, 122934, 149277, 175620, 199036, 204890, 245868, 248795, 298554, 307335, 348313, 409780, 497590, 597108, 614670, 696626, 746385, 995180, 1044939, 1229340, 1393252, 1492770, 1741565, 2089878, 2985540, 3483130, 4179756, 5224695, 6966260, 10449390, 20898780]

約数ペア:

[(1, 20898780), (2, 10449390), (3, 6966260), (4, 5224695), (5, 4179756), (6, 3483130), (7, 2985540), (10, 2089878), (12, 1741565), (14, 1492770), (15, 1393252), (17, 1229340), (20, 1044939), (21, 995180), (28, 746385), (30, 696626), (34, 614670), (35, 597108), (42, 497590), (51, 409780), (60, 348313), (68, 307335), (70, 298554), (84, 248795), (85, 245868), (102, 204890), (105, 199036), (119, 175620), (140, 149277), (170, 122934), (204, 102445), (210, 99518), (238, 87810), (255, 81956), (340, 61467), (357, 58540), (420, 49759), (476, 43905), (510, 40978), (595, 35124), (714, 29270), (1020, 20489), (1190, 17562), (1428, 14635), (1785, 11708), (2380, 8781), (2927, 7140), (3570, 5854)]