4240215

素因数分解:

$3^3\times 5^1\times 7^2\times {\mathrm{641}}^1$

素因数の和:669

約数の個数: 48

約数和(自身を含む): 8782560

約数和(自身を除く): 4542345

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 49, 63, 105, 135, 147, 189, 245, 315, 441, 641, 735, 945, 1323, 1923, 2205, 3205, 4487, 5769, 6615, 9615, 13461, 17307, 22435, 28845, 31409, 40383, 67305, 86535, 94227, 121149, 157045, 201915, 282681, 471135, 605745, 848043, 1413405, 4240215]

約数ペア:

[(1, 4240215), (3, 1413405), (5, 848043), (7, 605745), (9, 471135), (15, 282681), (21, 201915), (27, 157045), (35, 121149), (45, 94227), (49, 86535), (63, 67305), (105, 40383), (135, 31409), (147, 28845), (189, 22435), (245, 17307), (315, 13461), (441, 9615), (641, 6615), (735, 5769), (945, 4487), (1323, 3205), (1923, 2205)]