1815309780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{1657}}^1$

素因数の和:1750

約数の個数: 144

約数和(自身を含む): 5531883840

約数和(自身を除く): 3716574060

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 31, 38, 57, 60, 62, 76, 93, 95, 114, 124, 155, 186, 190, 228, 285, 310, 372, 380, 465, 570, 589, 620, 930, 961, 1140, 1178, 1657, 1767, 1860, 1922, 2356, 2883, 2945, 3314, 3534, 3844, 4805, 4971, 5766, 5890, 6628, 7068, 8285, 8835, 9610, 9942, 11532, 11780, 14415, 16570, 17670, 18259, 19220, 19884, 24855, 28830, 31483, 33140, 35340, 36518, 49710, 51367, 54777, 57660, 62966, 73036, 91295, 94449, 99420, 102734, 109554, 125932, 154101, 157415, 182590, 188898, 205468, 219108, 256835, 273885, 308202, 314830, 365180, 377796, 472245, 513670, 547770, 616404, 629660, 770505, 944490, 975973, 1027340, 1095540, 1541010, 1592377, 1888980, 1951946, 2927919, 3082020, 3184754, 3903892, 4777131, 4879865, 5855838, 6369508, 7961885, 9554262, 9759730, 11711676, 14639595, 15923770, 19108524, 19519460, 23885655, 29279190, 30255163, 31847540, 47771310, 58558380, 60510326, 90765489, 95542620, 121020652, 151275815, 181530978, 302551630, 363061956, 453827445, 605103260, 907654890, 1815309780]

約数ペア:

[(1, 1815309780), (2, 907654890), (3, 605103260), (4, 453827445), (5, 363061956), (6, 302551630), (10, 181530978), (12, 151275815), (15, 121020652), (19, 95542620), (20, 90765489), (30, 60510326), (31, 58558380), (38, 47771310), (57, 31847540), (60, 30255163), (62, 29279190), (76, 23885655), (93, 19519460), (95, 19108524), (114, 15923770), (124, 14639595), (155, 11711676), (186, 9759730), (190, 9554262), (228, 7961885), (285, 6369508), (310, 5855838), (372, 4879865), (380, 4777131), (465, 3903892), (570, 3184754), (589, 3082020), (620, 2927919), (930, 1951946), (961, 1888980), (1140, 1592377), (1178, 1541010), (1657, 1095540), (1767, 1027340), (1860, 975973), (1922, 944490), (2356, 770505), (2883, 629660), (2945, 616404), (3314, 547770), (3534, 513670), (3844, 472245), (4805, 377796), (4971, 365180), (5766, 314830), (5890, 308202), (6628, 273885), (7068, 256835), (8285, 219108), (8835, 205468), (9610, 188898), (9942, 182590), (11532, 157415), (11780, 154101), (14415, 125932), (16570, 109554), (17670, 102734), (18259, 99420), (19220, 94449), (19884, 91295), (24855, 73036), (28830, 62966), (31483, 57660), (33140, 54777), (35340, 51367), (36518, 49710)]