16780020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{16451}}^1$

素因数の和:16480

約数の個数: 48

約数和(自身を含む): 49750848

約数和(自身を除く): 32970828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 16451, 32902, 49353, 65804, 82255, 98706, 164510, 197412, 246765, 279667, 329020, 493530, 559334, 839001, 987060, 1118668, 1398335, 1678002, 2796670, 3356004, 4195005, 5593340, 8390010, 16780020]

約数ペア:

[(1, 16780020), (2, 8390010), (3, 5593340), (4, 4195005), (5, 3356004), (6, 2796670), (10, 1678002), (12, 1398335), (15, 1118668), (17, 987060), (20, 839001), (30, 559334), (34, 493530), (51, 329020), (60, 279667), (68, 246765), (85, 197412), (102, 164510), (170, 98706), (204, 82255), (255, 65804), (340, 49353), (510, 32902), (1020, 16451)]