19861530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{401}}^1$

素因数の和:551

約数の個数: 64

約数和(自身を含む): 51867648

約数和(自身を除く): 32006118

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 127, 130, 195, 254, 381, 390, 401, 635, 762, 802, 1203, 1270, 1651, 1905, 2005, 2406, 3302, 3810, 4010, 4953, 5213, 6015, 8255, 9906, 10426, 12030, 15639, 16510, 24765, 26065, 31278, 49530, 50927, 52130, 78195, 101854, 152781, 156390, 254635, 305562, 509270, 662051, 763905, 1324102, 1527810, 1986153, 3310255, 3972306, 6620510, 9930765, 19861530]

約数ペア:

[(1, 19861530), (2, 9930765), (3, 6620510), (5, 3972306), (6, 3310255), (10, 1986153), (13, 1527810), (15, 1324102), (26, 763905), (30, 662051), (39, 509270), (65, 305562), (78, 254635), (127, 156390), (130, 152781), (195, 101854), (254, 78195), (381, 52130), (390, 50927), (401, 49530), (635, 31278), (762, 26065), (802, 24765), (1203, 16510), (1270, 15639), (1651, 12030), (1905, 10426), (2005, 9906), (2406, 8255), (3302, 6015), (3810, 5213), (4010, 4953)]