1521340

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:142

約数の個数: 48

約数和(自身を含む): 3437280

約数和(自身を除く): 1915940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 61, 86, 116, 122, 145, 172, 215, 244, 290, 305, 430, 580, 610, 860, 1220, 1247, 1769, 2494, 2623, 3538, 4988, 5246, 6235, 7076, 8845, 10492, 12470, 13115, 17690, 24940, 26230, 35380, 52460, 76067, 152134, 304268, 380335, 760670, 1521340]

約数ペア:

[(1, 1521340), (2, 760670), (4, 380335), (5, 304268), (10, 152134), (20, 76067), (29, 52460), (43, 35380), (58, 26230), (61, 24940), (86, 17690), (116, 13115), (122, 12470), (145, 10492), (172, 8845), (215, 7076), (244, 6235), (290, 5246), (305, 4988), (430, 3538), (580, 2623), (610, 2494), (860, 1769), (1220, 1247)]