1991288960

素因数分解:

$2^7\times 5^1\times {\mathrm{431}}^1\times {\mathrm{7219}}^1$

素因数の和:7669

約数の個数: 64

約数和(自身を含む): 4772131200

約数和(自身を除く): 2780842240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 431, 640, 862, 1724, 2155, 3448, 4310, 6896, 7219, 8620, 13792, 14438, 17240, 27584, 28876, 34480, 36095, 55168, 57752, 68960, 72190, 115504, 137920, 144380, 231008, 275840, 288760, 462016, 577520, 924032, 1155040, 2310080, 3111389, 4620160, 6222778, 12445556, 15556945, 24891112, 31113890, 49782224, 62227780, 99564448, 124455560, 199128896, 248911120, 398257792, 497822240, 995644480, 1991288960]

約数ペア:

[(1, 1991288960), (2, 995644480), (4, 497822240), (5, 398257792), (8, 248911120), (10, 199128896), (16, 124455560), (20, 99564448), (32, 62227780), (40, 49782224), (64, 31113890), (80, 24891112), (128, 15556945), (160, 12445556), (320, 6222778), (431, 4620160), (640, 3111389), (862, 2310080), (1724, 1155040), (2155, 924032), (3448, 577520), (4310, 462016), (6896, 288760), (7219, 275840), (8620, 231008), (13792, 144380), (14438, 137920), (17240, 115504), (27584, 72190), (28876, 68960), (34480, 57752), (36095, 55168)]