18640749220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{16111}}^1$

素因数の和:16261

約数の個数: 96

約数和(自身を含む): 42973410816

約数和(自身を除く): 24332661596

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 83, 85, 164, 166, 170, 205, 332, 340, 410, 415, 697, 820, 830, 1394, 1411, 1660, 2788, 2822, 3403, 3485, 5644, 6806, 6970, 7055, 13612, 13940, 14110, 16111, 17015, 28220, 32222, 34030, 57851, 64444, 68060, 80555, 115702, 161110, 231404, 273887, 289255, 322220, 547774, 578510, 660551, 1095548, 1157020, 1321102, 1337213, 1369435, 2642204, 2674426, 2738870, 3302755, 5348852, 5477740, 6605510, 6686065, 11229367, 13211020, 13372130, 22458734, 22732621, 26744260, 44917468, 45465242, 54825733, 56146835, 90930484, 109651466, 112293670, 113663105, 219302932, 224587340, 227326210, 274128665, 454652420, 548257330, 932037461, 1096514660, 1864074922, 3728149844, 4660187305, 9320374610, 18640749220]

約数ペア:

[(1, 18640749220), (2, 9320374610), (4, 4660187305), (5, 3728149844), (10, 1864074922), (17, 1096514660), (20, 932037461), (34, 548257330), (41, 454652420), (68, 274128665), (82, 227326210), (83, 224587340), (85, 219302932), (164, 113663105), (166, 112293670), (170, 109651466), (205, 90930484), (332, 56146835), (340, 54825733), (410, 45465242), (415, 44917468), (697, 26744260), (820, 22732621), (830, 22458734), (1394, 13372130), (1411, 13211020), (1660, 11229367), (2788, 6686065), (2822, 6605510), (3403, 5477740), (3485, 5348852), (5644, 3302755), (6806, 2738870), (6970, 2674426), (7055, 2642204), (13612, 1369435), (13940, 1337213), (14110, 1321102), (16111, 1157020), (17015, 1095548), (28220, 660551), (32222, 578510), (34030, 547774), (57851, 322220), (64444, 289255), (68060, 273887), (80555, 231404), (115702, 161110)]