28156860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{8233}}^1$

素因数の和:8267

約数の個数: 72

約数和(自身を含む): 89915280

約数和(自身を除く): 61758420

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, 380, 570, 684, 855, 1140, 1710, 3420, 8233, 16466, 24699, 32932, 41165, 49398, 74097, 82330, 98796, 123495, 148194, 156427, 164660, 246990, 296388, 312854, 370485, 469281, 493980, 625708, 740970, 782135, 938562, 1407843, 1481940, 1564270, 1877124, 2346405, 2815686, 3128540, 4692810, 5631372, 7039215, 9385620, 14078430, 28156860]

約数ペア:

[(1, 28156860), (2, 14078430), (3, 9385620), (4, 7039215), (5, 5631372), (6, 4692810), (9, 3128540), (10, 2815686), (12, 2346405), (15, 1877124), (18, 1564270), (19, 1481940), (20, 1407843), (30, 938562), (36, 782135), (38, 740970), (45, 625708), (57, 493980), (60, 469281), (76, 370485), (90, 312854), (95, 296388), (114, 246990), (171, 164660), (180, 156427), (190, 148194), (228, 123495), (285, 98796), (342, 82330), (380, 74097), (570, 49398), (684, 41165), (855, 32932), (1140, 24699), (1710, 16466), (3420, 8233)]