18990180

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:191

約数の個数: 192

約数和(自身を含む): 67737600

約数和(自身を除く): 48747420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 23, 27, 30, 33, 36, 44, 45, 46, 54, 55, 60, 66, 69, 90, 92, 99, 108, 110, 115, 132, 135, 138, 139, 165, 180, 198, 207, 220, 230, 253, 270, 276, 278, 297, 330, 345, 396, 414, 417, 460, 495, 506, 540, 556, 594, 621, 660, 690, 695, 759, 828, 834, 990, 1012, 1035, 1188, 1242, 1251, 1265, 1380, 1390, 1485, 1518, 1529, 1668, 1980, 2070, 2085, 2277, 2484, 2502, 2530, 2780, 2970, 3036, 3058, 3105, 3197, 3753, 3795, 4140, 4170, 4554, 4587, 5004, 5060, 5940, 6116, 6210, 6255, 6394, 6831, 7506, 7590, 7645, 8340, 9108, 9174, 9591, 11385, 12420, 12510, 12788, 13662, 13761, 15012, 15180, 15290, 15985, 18348, 18765, 19182, 22770, 22935, 25020, 27324, 27522, 28773, 30580, 31970, 34155, 35167, 37530, 38364, 41283, 45540, 45870, 47955, 55044, 57546, 63940, 68310, 68805, 70334, 75060, 82566, 86319, 91740, 95910, 105501, 115092, 136620, 137610, 140668, 143865, 165132, 172638, 175835, 191820, 206415, 211002, 275220, 287730, 316503, 345276, 351670, 412830, 422004, 431595, 527505, 575460, 633006, 703340, 825660, 863190, 949509, 1055010, 1266012, 1582515, 1726380, 1899018, 2110020, 3165030, 3798036, 4747545, 6330060, 9495090, 18990180]

約数ペア:

[(1, 18990180), (2, 9495090), (3, 6330060), (4, 4747545), (5, 3798036), (6, 3165030), (9, 2110020), (10, 1899018), (11, 1726380), (12, 1582515), (15, 1266012), (18, 1055010), (20, 949509), (22, 863190), (23, 825660), (27, 703340), (30, 633006), (33, 575460), (36, 527505), (44, 431595), (45, 422004), (46, 412830), (54, 351670), (55, 345276), (60, 316503), (66, 287730), (69, 275220), (90, 211002), (92, 206415), (99, 191820), (108, 175835), (110, 172638), (115, 165132), (132, 143865), (135, 140668), (138, 137610), (139, 136620), (165, 115092), (180, 105501), (198, 95910), (207, 91740), (220, 86319), (230, 82566), (253, 75060), (270, 70334), (276, 68805), (278, 68310), (297, 63940), (330, 57546), (345, 55044), (396, 47955), (414, 45870), (417, 45540), (460, 41283), (495, 38364), (506, 37530), (540, 35167), (556, 34155), (594, 31970), (621, 30580), (660, 28773), (690, 27522), (695, 27324), (759, 25020), (828, 22935), (834, 22770), (990, 19182), (1012, 18765), (1035, 18348), (1188, 15985), (1242, 15290), (1251, 15180), (1265, 15012), (1380, 13761), (1390, 13662), (1485, 12788), (1518, 12510), (1529, 12420), (1668, 11385), (1980, 9591), (2070, 9174), (2085, 9108), (2277, 8340), (2484, 7645), (2502, 7590), (2530, 7506), (2780, 6831), (2970, 6394), (3036, 6255), (3058, 6210), (3105, 6116), (3197, 5940), (3753, 5060), (3795, 5004), (4140, 4587), (4170, 4554)]