1788419220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{1987}}^1\times {\mathrm{2143}}^1$

素因数の和:4149

約数の個数: 96

約数和(自身を含む): 5728493568

約数和(自身を除く): 3940074348

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 1987, 2143, 3974, 4286, 5961, 6429, 7948, 8572, 9935, 10715, 11922, 12858, 13909, 15001, 19870, 21430, 23844, 25716, 27818, 29805, 30002, 32145, 39740, 41727, 42860, 45003, 55636, 59610, 60004, 64290, 69545, 75005, 83454, 90006, 119220, 128580, 139090, 150010, 166908, 180012, 208635, 225015, 278180, 300020, 417270, 450030, 834540, 900060, 4258141, 8516282, 12774423, 17032564, 21290705, 25548846, 29806987, 42581410, 51097692, 59613974, 63872115, 85162820, 89420961, 119227948, 127744230, 149034935, 178841922, 255488460, 298069870, 357683844, 447104805, 596139740, 894209610, 1788419220]

約数ペア:

[(1, 1788419220), (2, 894209610), (3, 596139740), (4, 447104805), (5, 357683844), (6, 298069870), (7, 255488460), (10, 178841922), (12, 149034935), (14, 127744230), (15, 119227948), (20, 89420961), (21, 85162820), (28, 63872115), (30, 59613974), (35, 51097692), (42, 42581410), (60, 29806987), (70, 25548846), (84, 21290705), (105, 17032564), (140, 12774423), (210, 8516282), (420, 4258141), (1987, 900060), (2143, 834540), (3974, 450030), (4286, 417270), (5961, 300020), (6429, 278180), (7948, 225015), (8572, 208635), (9935, 180012), (10715, 166908), (11922, 150010), (12858, 139090), (13909, 128580), (15001, 119220), (19870, 90006), (21430, 83454), (23844, 75005), (25716, 69545), (27818, 64290), (29805, 60004), (30002, 59610), (32145, 55636), (39740, 45003), (41727, 42860)]