71884040

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2070

約数の個数: 64

約数和(自身を含む): 172800000

約数和(自身を除く): 100915960

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 31, 40, 58, 62, 116, 124, 145, 155, 232, 248, 290, 310, 580, 620, 899, 1160, 1240, 1798, 1999, 3596, 3998, 4495, 7192, 7996, 8990, 9995, 15992, 17980, 19990, 35960, 39980, 57971, 61969, 79960, 115942, 123938, 231884, 247876, 289855, 309845, 463768, 495752, 579710, 619690, 1159420, 1239380, 1797101, 2318840, 2478760, 3594202, 7188404, 8985505, 14376808, 17971010, 35942020, 71884040]

約数ペア:

[(1, 71884040), (2, 35942020), (4, 17971010), (5, 14376808), (8, 8985505), (10, 7188404), (20, 3594202), (29, 2478760), (31, 2318840), (40, 1797101), (58, 1239380), (62, 1159420), (116, 619690), (124, 579710), (145, 495752), (155, 463768), (232, 309845), (248, 289855), (290, 247876), (310, 231884), (580, 123938), (620, 115942), (899, 79960), (1160, 61969), (1240, 57971), (1798, 39980), (1999, 35960), (3596, 19990), (3998, 17980), (4495, 15992), (7192, 9995), (7996, 8990)]