1243920720

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{740429}}^1$

素因数の和:740452

約数の個数: 80

約数和(自身を含む): 4407039360

約数和(自身を除く): 3163118640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 740429, 1480858, 2221287, 2961716, 3702145, 4442574, 5183003, 5923432, 7404290, 8885148, 10366006, 11106435, 11846864, 14808580, 15549009, 17770296, 20732012, 22212870, 25915015, 29617160, 31098018, 35540592, 41464024, 44425740, 51830030, 59234320, 62196036, 77745045, 82928048, 88851480, 103660060, 124392072, 155490090, 177702960, 207320120, 248784144, 310980180, 414640240, 621960360, 1243920720]

約数ペア:

[(1, 1243920720), (2, 621960360), (3, 414640240), (4, 310980180), (5, 248784144), (6, 207320120), (7, 177702960), (8, 155490090), (10, 124392072), (12, 103660060), (14, 88851480), (15, 82928048), (16, 77745045), (20, 62196036), (21, 59234320), (24, 51830030), (28, 44425740), (30, 41464024), (35, 35540592), (40, 31098018), (42, 29617160), (48, 25915015), (56, 22212870), (60, 20732012), (70, 17770296), (80, 15549009), (84, 14808580), (105, 11846864), (112, 11106435), (120, 10366006), (140, 8885148), (168, 7404290), (210, 5923432), (240, 5183003), (280, 4442574), (336, 3702145), (420, 2961716), (560, 2221287), (840, 1480858), (1680, 740429)]