20019180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1$

素因数の和:319

約数の個数: 96

約数和(自身を含む): 59351040

約数和(自身を除く): 39331860

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 47, 60, 62, 93, 94, 124, 141, 155, 186, 188, 229, 235, 282, 310, 372, 458, 465, 470, 564, 620, 687, 705, 916, 930, 940, 1145, 1374, 1410, 1457, 1860, 2290, 2748, 2820, 2914, 3435, 4371, 4580, 5828, 6870, 7099, 7285, 8742, 10763, 13740, 14198, 14570, 17484, 21297, 21526, 21855, 28396, 29140, 32289, 35495, 42594, 43052, 43710, 53815, 64578, 70990, 85188, 87420, 106485, 107630, 129156, 141980, 161445, 212970, 215260, 322890, 333653, 425940, 645780, 667306, 1000959, 1334612, 1668265, 2001918, 3336530, 4003836, 5004795, 6673060, 10009590, 20019180]

約数ペア:

[(1, 20019180), (2, 10009590), (3, 6673060), (4, 5004795), (5, 4003836), (6, 3336530), (10, 2001918), (12, 1668265), (15, 1334612), (20, 1000959), (30, 667306), (31, 645780), (47, 425940), (60, 333653), (62, 322890), (93, 215260), (94, 212970), (124, 161445), (141, 141980), (155, 129156), (186, 107630), (188, 106485), (229, 87420), (235, 85188), (282, 70990), (310, 64578), (372, 53815), (458, 43710), (465, 43052), (470, 42594), (564, 35495), (620, 32289), (687, 29140), (705, 28396), (916, 21855), (930, 21526), (940, 21297), (1145, 17484), (1374, 14570), (1410, 14198), (1457, 13740), (1860, 10763), (2290, 8742), (2748, 7285), (2820, 7099), (2914, 6870), (3435, 5828), (4371, 4580)]