30731820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{10453}}^1$

素因数の和:10479

約数の個数: 72

約数和(自身を含む): 100107504

約数和(自身を除く): 69375684

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 420, 490, 588, 735, 980, 1470, 2940, 10453, 20906, 31359, 41812, 52265, 62718, 73171, 104530, 125436, 146342, 156795, 209060, 219513, 292684, 313590, 365855, 439026, 512197, 627180, 731710, 878052, 1024394, 1097565, 1463420, 1536591, 2048788, 2195130, 2560985, 3073182, 4390260, 5121970, 6146364, 7682955, 10243940, 15365910, 30731820]

約数ペア:

[(1, 30731820), (2, 15365910), (3, 10243940), (4, 7682955), (5, 6146364), (6, 5121970), (7, 4390260), (10, 3073182), (12, 2560985), (14, 2195130), (15, 2048788), (20, 1536591), (21, 1463420), (28, 1097565), (30, 1024394), (35, 878052), (42, 731710), (49, 627180), (60, 512197), (70, 439026), (84, 365855), (98, 313590), (105, 292684), (140, 219513), (147, 209060), (196, 156795), (210, 146342), (245, 125436), (294, 104530), (420, 73171), (490, 62718), (588, 52265), (735, 41812), (980, 31359), (1470, 20906), (2940, 10453)]