172020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:120

約数の個数: 48

約数和(自身を含む): 499968

約数和(自身を除く): 327948

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 61, 94, 122, 141, 183, 188, 235, 244, 282, 305, 366, 470, 564, 610, 705, 732, 915, 940, 1220, 1410, 1830, 2820, 2867, 3660, 5734, 8601, 11468, 14335, 17202, 28670, 34404, 43005, 57340, 86010, 172020]

約数ペア:

[(1, 172020), (2, 86010), (3, 57340), (4, 43005), (5, 34404), (6, 28670), (10, 17202), (12, 14335), (15, 11468), (20, 8601), (30, 5734), (47, 3660), (60, 2867), (61, 2820), (94, 1830), (122, 1410), (141, 1220), (183, 940), (188, 915), (235, 732), (244, 705), (282, 610), (305, 564), (366, 470)]