12968780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{233}}^1$

素因数の和:287

約数の個数: 72

約数和(自身を含む): 31370976

約数和(自身を除く): 18402196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 44, 46, 55, 92, 110, 115, 121, 220, 230, 233, 242, 253, 460, 466, 484, 506, 605, 932, 1012, 1165, 1210, 1265, 2330, 2420, 2530, 2563, 2783, 4660, 5060, 5126, 5359, 5566, 10252, 10718, 11132, 12815, 13915, 21436, 25630, 26795, 27830, 28193, 51260, 53590, 55660, 56386, 58949, 107180, 112772, 117898, 140965, 235796, 281930, 294745, 563860, 589490, 648439, 1178980, 1296878, 2593756, 3242195, 6484390, 12968780]

約数ペア:

[(1, 12968780), (2, 6484390), (4, 3242195), (5, 2593756), (10, 1296878), (11, 1178980), (20, 648439), (22, 589490), (23, 563860), (44, 294745), (46, 281930), (55, 235796), (92, 140965), (110, 117898), (115, 112772), (121, 107180), (220, 58949), (230, 56386), (233, 55660), (242, 53590), (253, 51260), (460, 28193), (466, 27830), (484, 26795), (506, 25630), (605, 21436), (932, 13915), (1012, 12815), (1165, 11132), (1210, 10718), (1265, 10252), (2330, 5566), (2420, 5359), (2530, 5126), (2563, 5060), (2783, 4660)]