20931290

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{541}}^1$

素因数の和:674

約数の個数: 32

約数和(自身を含む): 38984976

約数和(自身を除く): 18053686

約数列:

[1, 2, 5, 10, 53, 73, 106, 146, 265, 365, 530, 541, 730, 1082, 2705, 3869, 5410, 7738, 19345, 28673, 38690, 39493, 57346, 78986, 143365, 197465, 286730, 394930, 2093129, 4186258, 10465645, 20931290]

約数ペア:

[(1, 20931290), (2, 10465645), (5, 4186258), (10, 2093129), (53, 394930), (73, 286730), (106, 197465), (146, 143365), (265, 78986), (365, 57346), (530, 39493), (541, 38690), (730, 28673), (1082, 19345), (2705, 7738), (3869, 5410)]