19791540

素因数分解:

$2^2\times 3^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{643}}^1$

素因数の和:683

約数の個数: 120

約数和(自身を含む): 65456160

約数和(自身を除く): 45664620

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 27, 30, 36, 38, 45, 54, 57, 60, 76, 81, 90, 95, 108, 114, 135, 162, 171, 180, 190, 228, 270, 285, 324, 342, 380, 405, 513, 540, 570, 643, 684, 810, 855, 1026, 1140, 1286, 1539, 1620, 1710, 1929, 2052, 2565, 2572, 3078, 3215, 3420, 3858, 5130, 5787, 6156, 6430, 7695, 7716, 9645, 10260, 11574, 12217, 12860, 15390, 17361, 19290, 23148, 24434, 28935, 30780, 34722, 36651, 38580, 48868, 52083, 57870, 61085, 69444, 73302, 86805, 104166, 109953, 115740, 122170, 146604, 173610, 183255, 208332, 219906, 244340, 260415, 329859, 347220, 366510, 439812, 520830, 549765, 659718, 733020, 989577, 1041660, 1099530, 1319436, 1649295, 1979154, 2199060, 3298590, 3958308, 4947885, 6597180, 9895770, 19791540]

約数ペア:

[(1, 19791540), (2, 9895770), (3, 6597180), (4, 4947885), (5, 3958308), (6, 3298590), (9, 2199060), (10, 1979154), (12, 1649295), (15, 1319436), (18, 1099530), (19, 1041660), (20, 989577), (27, 733020), (30, 659718), (36, 549765), (38, 520830), (45, 439812), (54, 366510), (57, 347220), (60, 329859), (76, 260415), (81, 244340), (90, 219906), (95, 208332), (108, 183255), (114, 173610), (135, 146604), (162, 122170), (171, 115740), (180, 109953), (190, 104166), (228, 86805), (270, 73302), (285, 69444), (324, 61085), (342, 57870), (380, 52083), (405, 48868), (513, 38580), (540, 36651), (570, 34722), (643, 30780), (684, 28935), (810, 24434), (855, 23148), (1026, 19290), (1140, 17361), (1286, 15390), (1539, 12860), (1620, 12217), (1710, 11574), (1929, 10260), (2052, 9645), (2565, 7716), (2572, 7695), (3078, 6430), (3215, 6156), (3420, 5787), (3858, 5130)]