187894640

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:490

約数の個数: 80

約数和(自身を含む): 448825440

約数和(自身を除く): 260930800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 139, 244, 277, 278, 305, 488, 554, 556, 610, 695, 976, 1108, 1112, 1220, 1385, 1390, 2216, 2224, 2440, 2770, 2780, 4432, 4880, 5540, 5560, 8479, 11080, 11120, 16897, 16958, 22160, 33794, 33916, 38503, 42395, 67588, 67832, 77006, 84485, 84790, 135176, 135664, 154012, 168970, 169580, 192515, 270352, 308024, 337940, 339160, 385030, 616048, 675880, 678320, 770060, 1351760, 1540120, 2348683, 3080240, 4697366, 9394732, 11743415, 18789464, 23486830, 37578928, 46973660, 93947320, 187894640]

約数ペア:

[(1, 187894640), (2, 93947320), (4, 46973660), (5, 37578928), (8, 23486830), (10, 18789464), (16, 11743415), (20, 9394732), (40, 4697366), (61, 3080240), (80, 2348683), (122, 1540120), (139, 1351760), (244, 770060), (277, 678320), (278, 675880), (305, 616048), (488, 385030), (554, 339160), (556, 337940), (610, 308024), (695, 270352), (976, 192515), (1108, 169580), (1112, 168970), (1220, 154012), (1385, 135664), (1390, 135176), (2216, 84790), (2224, 84485), (2440, 77006), (2770, 67832), (2780, 67588), (4432, 42395), (4880, 38503), (5540, 33916), (5560, 33794), (8479, 22160), (11080, 16958), (11120, 16897)]