28786140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{443}}^1$

素因数の和:496

約数の個数: 108

約数和(自身を含む): 92363544

約数和(自身を除く): 63577404

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 361, 380, 443, 570, 684, 722, 855, 886, 1083, 1140, 1329, 1444, 1710, 1772, 1805, 2166, 2215, 2658, 3249, 3420, 3610, 3987, 4332, 4430, 5316, 5415, 6498, 6645, 7220, 7974, 8417, 8860, 10830, 12996, 13290, 15948, 16245, 16834, 19935, 21660, 25251, 26580, 32490, 33668, 39870, 42085, 50502, 64980, 75753, 79740, 84170, 101004, 126255, 151506, 159923, 168340, 252510, 303012, 319846, 378765, 479769, 505020, 639692, 757530, 799615, 959538, 1439307, 1515060, 1599230, 1919076, 2398845, 2878614, 3198460, 4797690, 5757228, 7196535, 9595380, 14393070, 28786140]

約数ペア:

[(1, 28786140), (2, 14393070), (3, 9595380), (4, 7196535), (5, 5757228), (6, 4797690), (9, 3198460), (10, 2878614), (12, 2398845), (15, 1919076), (18, 1599230), (19, 1515060), (20, 1439307), (30, 959538), (36, 799615), (38, 757530), (45, 639692), (57, 505020), (60, 479769), (76, 378765), (90, 319846), (95, 303012), (114, 252510), (171, 168340), (180, 159923), (190, 151506), (228, 126255), (285, 101004), (342, 84170), (361, 79740), (380, 75753), (443, 64980), (570, 50502), (684, 42085), (722, 39870), (855, 33668), (886, 32490), (1083, 26580), (1140, 25251), (1329, 21660), (1444, 19935), (1710, 16834), (1772, 16245), (1805, 15948), (2166, 13290), (2215, 12996), (2658, 10830), (3249, 8860), (3420, 8417), (3610, 7974), (3987, 7220), (4332, 6645), (4430, 6498), (5316, 5415)]