20154995714

素因数分解:

$2^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{1277}}^1$

素因数の和:1667

約数の個数: 64

約数和(自身を含む): 35775820800

約数和(自身を除く): 15620825086

約数列:

[1, 2, 7, 14, 53, 89, 106, 178, 239, 371, 478, 623, 742, 1246, 1277, 1673, 2554, 3346, 4717, 8939, 9434, 12667, 17878, 21271, 25334, 33019, 42542, 66038, 67681, 88669, 113653, 135362, 148897, 177338, 227306, 297794, 305203, 473767, 610406, 795571, 947534, 1127363, 1591142, 2136421, 2254726, 4272842, 6023609, 7891541, 12047218, 15783082, 16175759, 27163067, 32351518, 42165263, 54326134, 84330526, 113230313, 190141469, 226460626, 380282938, 1439642551, 2879285102, 10077497857, 20154995714]

約数ペア:

[(1, 20154995714), (2, 10077497857), (7, 2879285102), (14, 1439642551), (53, 380282938), (89, 226460626), (106, 190141469), (178, 113230313), (239, 84330526), (371, 54326134), (478, 42165263), (623, 32351518), (742, 27163067), (1246, 16175759), (1277, 15783082), (1673, 12047218), (2554, 7891541), (3346, 6023609), (4717, 4272842), (8939, 2254726), (9434, 2136421), (12667, 1591142), (17878, 1127363), (21271, 947534), (25334, 795571), (33019, 610406), (42542, 473767), (66038, 305203), (67681, 297794), (88669, 227306), (113653, 177338), (135362, 148897)]