205523440

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{15761}}^1$

素因数の和:15937

約数の個数: 40

約数和(自身を含む): 480804048

約数和(自身を除く): 275280608

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 6520, 13040, 15761, 31522, 63044, 78805, 126088, 157610, 252176, 315220, 630440, 1260880, 2569043, 5138086, 10276172, 12845215, 20552344, 25690430, 41104688, 51380860, 102761720, 205523440]

約数ペア:

[(1, 205523440), (2, 102761720), (4, 51380860), (5, 41104688), (8, 25690430), (10, 20552344), (16, 12845215), (20, 10276172), (40, 5138086), (80, 2569043), (163, 1260880), (326, 630440), (652, 315220), (815, 252176), (1304, 157610), (1630, 126088), (2608, 78805), (3260, 63044), (6520, 31522), (13040, 15761)]