20218986556

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{1409}}^1\times {\mathrm{2557}}^1$

素因数の和:4054

約数の個数: 48

約数和(自身を含む): 37568220480

約数和(自身を除く): 17349233924

約数列:

[1, 2, 4, 23, 46, 61, 92, 122, 244, 1403, 1409, 2557, 2806, 2818, 5114, 5612, 5636, 10228, 32407, 58811, 64814, 85949, 117622, 129628, 155977, 171898, 235244, 311954, 343796, 623908, 1976827, 3587471, 3602813, 3953654, 7174942, 7205626, 7907308, 14349884, 14411252, 82864699, 165729398, 219771593, 331458796, 439543186, 879086372, 5054746639, 10109493278, 20218986556]

約数ペア:

[(1, 20218986556), (2, 10109493278), (4, 5054746639), (23, 879086372), (46, 439543186), (61, 331458796), (92, 219771593), (122, 165729398), (244, 82864699), (1403, 14411252), (1409, 14349884), (2557, 7907308), (2806, 7205626), (2818, 7174942), (5114, 3953654), (5612, 3602813), (5636, 3587471), (10228, 1976827), (32407, 623908), (58811, 343796), (64814, 311954), (85949, 235244), (117622, 171898), (129628, 155977)]