128898420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2579}}^1$

素因数の和:2622

約数の個数: 144

約数和(自身を含む): 444709440

約数和(自身を除く): 315811020

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 17, 20, 21, 28, 30, 34, 35, 42, 49, 51, 60, 68, 70, 84, 85, 98, 102, 105, 119, 140, 147, 170, 196, 204, 210, 238, 245, 255, 294, 340, 357, 420, 476, 490, 510, 588, 595, 714, 735, 833, 980, 1020, 1190, 1428, 1470, 1666, 1785, 2380, 2499, 2579, 2940, 3332, 3570, 4165, 4998, 5158, 7140, 7737, 8330, 9996, 10316, 12495, 12895, 15474, 16660, 18053, 24990, 25790, 30948, 36106, 38685, 43843, 49980, 51580, 54159, 72212, 77370, 87686, 90265, 108318, 126371, 131529, 154740, 175372, 180530, 216636, 219215, 252742, 263058, 270795, 306901, 361060, 379113, 438430, 505484, 526116, 541590, 613802, 631855, 657645, 758226, 876860, 920703, 1083180, 1227604, 1263710, 1315290, 1516452, 1534505, 1841406, 1895565, 2148307, 2527420, 2630580, 3069010, 3682812, 3791130, 4296614, 4603515, 6138020, 6444921, 7582260, 8593228, 9207030, 10741535, 12889842, 18414060, 21483070, 25779684, 32224605, 42966140, 64449210, 128898420]

約数ペア:

[(1, 128898420), (2, 64449210), (3, 42966140), (4, 32224605), (5, 25779684), (6, 21483070), (7, 18414060), (10, 12889842), (12, 10741535), (14, 9207030), (15, 8593228), (17, 7582260), (20, 6444921), (21, 6138020), (28, 4603515), (30, 4296614), (34, 3791130), (35, 3682812), (42, 3069010), (49, 2630580), (51, 2527420), (60, 2148307), (68, 1895565), (70, 1841406), (84, 1534505), (85, 1516452), (98, 1315290), (102, 1263710), (105, 1227604), (119, 1083180), (140, 920703), (147, 876860), (170, 758226), (196, 657645), (204, 631855), (210, 613802), (238, 541590), (245, 526116), (255, 505484), (294, 438430), (340, 379113), (357, 361060), (420, 306901), (476, 270795), (490, 263058), (510, 252742), (588, 219215), (595, 216636), (714, 180530), (735, 175372), (833, 154740), (980, 131529), (1020, 126371), (1190, 108318), (1428, 90265), (1470, 87686), (1666, 77370), (1785, 72212), (2380, 54159), (2499, 51580), (2579, 49980), (2940, 43843), (3332, 38685), (3570, 36106), (4165, 30948), (4998, 25790), (5158, 24990), (7140, 18053), (7737, 16660), (8330, 15474), (9996, 12895), (10316, 12495)]