18711960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{283}}^1$

素因数の和:345

約数の個数: 128

約数和(自身を含む): 61344000

約数和(自身を除く): 42632040

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 24, 29, 30, 38, 40, 57, 58, 60, 76, 87, 95, 114, 116, 120, 145, 152, 174, 190, 228, 232, 283, 285, 290, 348, 380, 435, 456, 551, 566, 570, 580, 696, 760, 849, 870, 1102, 1132, 1140, 1160, 1415, 1653, 1698, 1740, 2204, 2264, 2280, 2755, 2830, 3306, 3396, 3480, 4245, 4408, 5377, 5510, 5660, 6612, 6792, 8207, 8265, 8490, 10754, 11020, 11320, 13224, 16131, 16414, 16530, 16980, 21508, 22040, 24621, 26885, 32262, 32828, 33060, 33960, 41035, 43016, 49242, 53770, 64524, 65656, 66120, 80655, 82070, 98484, 107540, 123105, 129048, 155933, 161310, 164140, 196968, 215080, 246210, 311866, 322620, 328280, 467799, 492420, 623732, 645240, 779665, 935598, 984840, 1247464, 1559330, 1871196, 2338995, 3118660, 3742392, 4677990, 6237320, 9355980, 18711960]

約数ペア:

[(1, 18711960), (2, 9355980), (3, 6237320), (4, 4677990), (5, 3742392), (6, 3118660), (8, 2338995), (10, 1871196), (12, 1559330), (15, 1247464), (19, 984840), (20, 935598), (24, 779665), (29, 645240), (30, 623732), (38, 492420), (40, 467799), (57, 328280), (58, 322620), (60, 311866), (76, 246210), (87, 215080), (95, 196968), (114, 164140), (116, 161310), (120, 155933), (145, 129048), (152, 123105), (174, 107540), (190, 98484), (228, 82070), (232, 80655), (283, 66120), (285, 65656), (290, 64524), (348, 53770), (380, 49242), (435, 43016), (456, 41035), (551, 33960), (566, 33060), (570, 32828), (580, 32262), (696, 26885), (760, 24621), (849, 22040), (870, 21508), (1102, 16980), (1132, 16530), (1140, 16414), (1160, 16131), (1415, 13224), (1653, 11320), (1698, 11020), (1740, 10754), (2204, 8490), (2264, 8265), (2280, 8207), (2755, 6792), (2830, 6612), (3306, 5660), (3396, 5510), (3480, 5377), (4245, 4408)]