206456940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{18803}}^1$

素因数の和:18879

約数の個数: 72

約数和(自身を含む): 636553008

約数和(自身を除く): 430096068

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 61, 90, 122, 180, 183, 244, 305, 366, 549, 610, 732, 915, 1098, 1220, 1830, 2196, 2745, 3660, 5490, 10980, 18803, 37606, 56409, 75212, 94015, 112818, 169227, 188030, 225636, 282045, 338454, 376060, 564090, 676908, 846135, 1128180, 1146983, 1692270, 2293966, 3384540, 3440949, 4587932, 5734915, 6881898, 10322847, 11469830, 13763796, 17204745, 20645694, 22939660, 34409490, 41291388, 51614235, 68818980, 103228470, 206456940]

約数ペア:

[(1, 206456940), (2, 103228470), (3, 68818980), (4, 51614235), (5, 41291388), (6, 34409490), (9, 22939660), (10, 20645694), (12, 17204745), (15, 13763796), (18, 11469830), (20, 10322847), (30, 6881898), (36, 5734915), (45, 4587932), (60, 3440949), (61, 3384540), (90, 2293966), (122, 1692270), (180, 1146983), (183, 1128180), (244, 846135), (305, 676908), (366, 564090), (549, 376060), (610, 338454), (732, 282045), (915, 225636), (1098, 188030), (1220, 169227), (1830, 112818), (2196, 94015), (2745, 75212), (3660, 56409), (5490, 37606), (10980, 18803)]