400139642

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1681259}}^1$

素因数の和:1681285

約数の個数: 16

約数和(自身を含む): 726304320

約数和(自身を除く): 326164678

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 1681259, 3362518, 11768813, 23537626, 28581403, 57162806, 200069821, 400139642]

約数ペア:

[(1, 400139642), (2, 200069821), (7, 57162806), (14, 28581403), (17, 23537626), (34, 11768813), (119, 3362518), (238, 1681259)]