399185220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{15581}}^1$

素因数の和:15661

約数の個数: 96

約数和(自身を含む): 1298416896

約数和(自身を除く): 899231676

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 61, 70, 84, 105, 122, 140, 183, 210, 244, 305, 366, 420, 427, 610, 732, 854, 915, 1220, 1281, 1708, 1830, 2135, 2562, 3660, 4270, 5124, 6405, 8540, 12810, 15581, 25620, 31162, 46743, 62324, 77905, 93486, 109067, 155810, 186972, 218134, 233715, 311620, 327201, 436268, 467430, 545335, 654402, 934860, 950441, 1090670, 1308804, 1636005, 1900882, 2181340, 2851323, 3272010, 3801764, 4752205, 5702646, 6544020, 6653087, 9504410, 11405292, 13306174, 14256615, 19008820, 19959261, 26612348, 28513230, 33265435, 39918522, 57026460, 66530870, 79837044, 99796305, 133061740, 199592610, 399185220]

約数ペア:

[(1, 399185220), (2, 199592610), (3, 133061740), (4, 99796305), (5, 79837044), (6, 66530870), (7, 57026460), (10, 39918522), (12, 33265435), (14, 28513230), (15, 26612348), (20, 19959261), (21, 19008820), (28, 14256615), (30, 13306174), (35, 11405292), (42, 9504410), (60, 6653087), (61, 6544020), (70, 5702646), (84, 4752205), (105, 3801764), (122, 3272010), (140, 2851323), (183, 2181340), (210, 1900882), (244, 1636005), (305, 1308804), (366, 1090670), (420, 950441), (427, 934860), (610, 654402), (732, 545335), (854, 467430), (915, 436268), (1220, 327201), (1281, 311620), (1708, 233715), (1830, 218134), (2135, 186972), (2562, 155810), (3660, 109067), (4270, 93486), (5124, 77905), (6405, 62324), (8540, 46743), (12810, 31162), (15581, 25620)]