30721530

素因数分解:

$2^1\times 3^1\times 5^1\times 7^2\times {\mathrm{20899}}^1$

素因数の和:20923

約数の個数: 48

約数和(自身を含む): 85773600

約数和(自身を除く): 55052070

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 49, 70, 98, 105, 147, 210, 245, 294, 490, 735, 1470, 20899, 41798, 62697, 104495, 125394, 146293, 208990, 292586, 313485, 438879, 626970, 731465, 877758, 1024051, 1462930, 2048102, 2194395, 3072153, 4388790, 5120255, 6144306, 10240510, 15360765, 30721530]

約数ペア:

[(1, 30721530), (2, 15360765), (3, 10240510), (5, 6144306), (6, 5120255), (7, 4388790), (10, 3072153), (14, 2194395), (15, 2048102), (21, 1462930), (30, 1024051), (35, 877758), (42, 731465), (49, 626970), (70, 438879), (98, 313485), (105, 292586), (147, 208990), (210, 146293), (245, 125394), (294, 104495), (490, 62697), (735, 41798), (1470, 20899)]