2040642680

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{733}}^1\times {\mathrm{881}}^1$

素因数の和:1704

約数の個数: 64

約数和(自身を含む): 4661193600

約数和(自身を除く): 2620550920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 733, 790, 881, 1466, 1580, 1762, 2932, 3160, 3524, 3665, 4405, 5864, 7048, 7330, 8810, 14660, 17620, 29320, 35240, 57907, 69599, 115814, 139198, 231628, 278396, 289535, 347995, 463256, 556792, 579070, 645773, 695990, 1158140, 1291546, 1391980, 2316280, 2583092, 2783960, 3228865, 5166184, 6457730, 12915460, 25830920, 51016067, 102032134, 204064268, 255080335, 408128536, 510160670, 1020321340, 2040642680]

約数ペア:

[(1, 2040642680), (2, 1020321340), (4, 510160670), (5, 408128536), (8, 255080335), (10, 204064268), (20, 102032134), (40, 51016067), (79, 25830920), (158, 12915460), (316, 6457730), (395, 5166184), (632, 3228865), (733, 2783960), (790, 2583092), (881, 2316280), (1466, 1391980), (1580, 1291546), (1762, 1158140), (2932, 695990), (3160, 645773), (3524, 579070), (3665, 556792), (4405, 463256), (5864, 347995), (7048, 289535), (7330, 278396), (8810, 231628), (14660, 139198), (17620, 115814), (29320, 69599), (35240, 57907)]