406975380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{138427}}^1$

素因数の和:138453

約数の個数: 72

約数和(自身を含む): 1325586528

約数和(自身を除く): 918611148

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, 735, 980, 1470, 2940, 138427, 276854, 415281, 553708, 692135, 830562, 968989, 1384270, 1661124, 1937978, 2076405, 2768540, 2906967, 3875956, 4152810, 4844945, 5813934, 6782923, 8305620, 9689890, 11627868, 13565846, 14534835, 19379780, 20348769, 27131692, 29069670, 33914615, 40697538, 58139340, 67829230, 81395076, 101743845, 135658460, 203487690, 406975380]

約数ペア:

[(1, 406975380), (2, 203487690), (3, 135658460), (4, 101743845), (5, 81395076), (6, 67829230), (7, 58139340), (10, 40697538), (12, 33914615), (14, 29069670), (15, 27131692), (20, 20348769), (21, 19379780), (28, 14534835), (30, 13565846), (35, 11627868), (42, 9689890), (49, 8305620), (60, 6782923), (70, 5813934), (84, 4844945), (98, 4152810), (105, 3875956), (140, 2906967), (147, 2768540), (196, 2076405), (210, 1937978), (245, 1661124), (294, 1384270), (420, 968989), (490, 830562), (588, 692135), (735, 553708), (980, 415281), (1470, 276854), (2940, 138427)]