78822640

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3989}}^1$

素因数の和:4034

約数の個数: 80

約数和(自身を含む): 207799200

約数和(自身を除く): 128976560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 190, 208, 247, 260, 304, 380, 494, 520, 760, 988, 1040, 1235, 1520, 1976, 2470, 3952, 3989, 4940, 7978, 9880, 15956, 19760, 19945, 31912, 39890, 51857, 63824, 75791, 79780, 103714, 151582, 159560, 207428, 259285, 303164, 319120, 378955, 414856, 518570, 606328, 757910, 829712, 985283, 1037140, 1212656, 1515820, 1970566, 2074280, 3031640, 3941132, 4148560, 4926415, 6063280, 7882264, 9852830, 15764528, 19705660, 39411320, 78822640]

約数ペア:

[(1, 78822640), (2, 39411320), (4, 19705660), (5, 15764528), (8, 9852830), (10, 7882264), (13, 6063280), (16, 4926415), (19, 4148560), (20, 3941132), (26, 3031640), (38, 2074280), (40, 1970566), (52, 1515820), (65, 1212656), (76, 1037140), (80, 985283), (95, 829712), (104, 757910), (130, 606328), (152, 518570), (190, 414856), (208, 378955), (247, 319120), (260, 303164), (304, 259285), (380, 207428), (494, 159560), (520, 151582), (760, 103714), (988, 79780), (1040, 75791), (1235, 63824), (1520, 51857), (1976, 39890), (2470, 31912), (3952, 19945), (3989, 19760), (4940, 15956), (7978, 9880)]