397944120

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{473743}}^1$

素因数の和:473764

約数の個数: 64

約数和(自身を含む): 1364382720

約数和(自身を除く): 966438600

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 473743, 947486, 1421229, 1894972, 2368715, 2842458, 3316201, 3789944, 4737430, 5684916, 6632402, 7106145, 9474860, 9948603, 11369832, 13264804, 14212290, 16581005, 18949720, 19897206, 26529608, 28424580, 33162010, 39794412, 49743015, 56849160, 66324020, 79588824, 99486030, 132648040, 198972060, 397944120]

約数ペア:

[(1, 397944120), (2, 198972060), (3, 132648040), (4, 99486030), (5, 79588824), (6, 66324020), (7, 56849160), (8, 49743015), (10, 39794412), (12, 33162010), (14, 28424580), (15, 26529608), (20, 19897206), (21, 18949720), (24, 16581005), (28, 14212290), (30, 13264804), (35, 11369832), (40, 9948603), (42, 9474860), (56, 7106145), (60, 6632402), (70, 5684916), (84, 4737430), (105, 3789944), (120, 3316201), (140, 2842458), (168, 2368715), (210, 1894972), (280, 1421229), (420, 947486), (840, 473743)]