20291620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{797}}^1$

素因数の和:892

約数の個数: 48

約数和(自身を含む): 45581760

約数和(自身を除く): 25290140

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 67, 76, 95, 134, 190, 268, 335, 380, 670, 797, 1273, 1340, 1594, 2546, 3188, 3985, 5092, 6365, 7970, 12730, 15143, 15940, 25460, 30286, 53399, 60572, 75715, 106798, 151430, 213596, 266995, 302860, 533990, 1014581, 1067980, 2029162, 4058324, 5072905, 10145810, 20291620]

約数ペア:

[(1, 20291620), (2, 10145810), (4, 5072905), (5, 4058324), (10, 2029162), (19, 1067980), (20, 1014581), (38, 533990), (67, 302860), (76, 266995), (95, 213596), (134, 151430), (190, 106798), (268, 75715), (335, 60572), (380, 53399), (670, 30286), (797, 25460), (1273, 15940), (1340, 15143), (1594, 12730), (2546, 7970), (3188, 6365), (3985, 5092)]