138641920

素因数分解:

$2^9\times 5^1\times {\mathrm{31}}^1\times {\mathrm{1747}}^1$

素因数の和:1801

約数の個数: 80

約数和(自身を含む): 343335168

約数和(自身を除く): 204693248

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 128, 155, 160, 248, 256, 310, 320, 496, 512, 620, 640, 992, 1240, 1280, 1747, 1984, 2480, 2560, 3494, 3968, 4960, 6988, 7936, 8735, 9920, 13976, 15872, 17470, 19840, 27952, 34940, 39680, 54157, 55904, 69880, 79360, 108314, 111808, 139760, 216628, 223616, 270785, 279520, 433256, 447232, 541570, 559040, 866512, 894464, 1083140, 1118080, 1733024, 2166280, 2236160, 3466048, 4332560, 4472320, 6932096, 8665120, 13864192, 17330240, 27728384, 34660480, 69320960, 138641920]

約数ペア:

[(1, 138641920), (2, 69320960), (4, 34660480), (5, 27728384), (8, 17330240), (10, 13864192), (16, 8665120), (20, 6932096), (31, 4472320), (32, 4332560), (40, 3466048), (62, 2236160), (64, 2166280), (80, 1733024), (124, 1118080), (128, 1083140), (155, 894464), (160, 866512), (248, 559040), (256, 541570), (310, 447232), (320, 433256), (496, 279520), (512, 270785), (620, 223616), (640, 216628), (992, 139760), (1240, 111808), (1280, 108314), (1747, 79360), (1984, 69880), (2480, 55904), (2560, 54157), (3494, 39680), (3968, 34940), (4960, 27952), (6988, 19840), (7936, 17470), (8735, 15872), (9920, 13976)]