389664240

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{231943}}^1$

素因数の和:231966

約数の個数: 80

約数和(自身を含む): 1380530688

約数和(自身を除く): 990866448

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, 231943, 463886, 695829, 927772, 1159715, 1391658, 1623601, 1855544, 2319430, 2783316, 3247202, 3479145, 3711088, 4638860, 4870803, 5566632, 6494404, 6958290, 8118005, 9277720, 9741606, 11133264, 12988808, 13916580, 16236010, 18555440, 19483212, 24354015, 25977616, 27833160, 32472020, 38966424, 48708030, 55666320, 64944040, 77932848, 97416060, 129888080, 194832120, 389664240]

約数ペア:

[(1, 389664240), (2, 194832120), (3, 129888080), (4, 97416060), (5, 77932848), (6, 64944040), (7, 55666320), (8, 48708030), (10, 38966424), (12, 32472020), (14, 27833160), (15, 25977616), (16, 24354015), (20, 19483212), (21, 18555440), (24, 16236010), (28, 13916580), (30, 12988808), (35, 11133264), (40, 9741606), (42, 9277720), (48, 8118005), (56, 6958290), (60, 6494404), (70, 5566632), (80, 4870803), (84, 4638860), (105, 3711088), (112, 3479145), (120, 3247202), (140, 2783316), (168, 2319430), (210, 1855544), (240, 1623601), (280, 1391658), (336, 1159715), (420, 927772), (560, 695829), (840, 463886), (1680, 231943)]