19771510

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 64

約数和(自身を含む): 41912640

約数和(自身を除く): 22141130

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 97, 109, 110, 170, 187, 194, 218, 374, 485, 545, 935, 970, 1067, 1090, 1199, 1649, 1853, 1870, 2134, 2398, 3298, 3706, 5335, 5995, 8245, 9265, 10573, 10670, 11990, 16490, 18139, 18530, 20383, 21146, 36278, 40766, 52865, 90695, 101915, 105730, 116303, 179741, 181390, 203830, 232606, 359482, 581515, 898705, 1163030, 1797410, 1977151, 3954302, 9885755, 19771510]

約数ペア:

[(1, 19771510), (2, 9885755), (5, 3954302), (10, 1977151), (11, 1797410), (17, 1163030), (22, 898705), (34, 581515), (55, 359482), (85, 232606), (97, 203830), (109, 181390), (110, 179741), (170, 116303), (187, 105730), (194, 101915), (218, 90695), (374, 52865), (485, 40766), (545, 36278), (935, 21146), (970, 20383), (1067, 18530), (1090, 18139), (1199, 16490), (1649, 11990), (1853, 10670), (1870, 10573), (2134, 9265), (2398, 8245), (3298, 5995), (3706, 5335)]