20122123984

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{997}}^1\times {\mathrm{74201}}^1$

素因数の和:75223

約数の個数: 40

約数和(自身を含む): 41321906568

約数和(自身を除く): 21199782584

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 997, 1994, 3988, 7976, 15952, 16949, 33898, 67796, 74201, 135592, 148402, 271184, 296804, 593608, 1187216, 1261417, 2522834, 5045668, 10091336, 20182672, 73978397, 147956794, 295913588, 591827176, 1183654352, 1257632749, 2515265498, 5030530996, 10061061992, 20122123984]

約数ペア:

[(1, 20122123984), (2, 10061061992), (4, 5030530996), (8, 2515265498), (16, 1257632749), (17, 1183654352), (34, 591827176), (68, 295913588), (136, 147956794), (272, 73978397), (997, 20182672), (1994, 10091336), (3988, 5045668), (7976, 2522834), (15952, 1261417), (16949, 1187216), (33898, 593608), (67796, 296804), (74201, 271184), (135592, 148402)]