15915480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{18947}}^1$

素因数の和:18968

約数の個数: 64

約数和(自身を含む): 54570240

約数和(自身を除く): 38654760

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 18947, 37894, 56841, 75788, 94735, 113682, 132629, 151576, 189470, 227364, 265258, 284205, 378940, 397887, 454728, 530516, 568410, 663145, 757880, 795774, 1061032, 1136820, 1326290, 1591548, 1989435, 2273640, 2652580, 3183096, 3978870, 5305160, 7957740, 15915480]

約数ペア:

[(1, 15915480), (2, 7957740), (3, 5305160), (4, 3978870), (5, 3183096), (6, 2652580), (7, 2273640), (8, 1989435), (10, 1591548), (12, 1326290), (14, 1136820), (15, 1061032), (20, 795774), (21, 757880), (24, 663145), (28, 568410), (30, 530516), (35, 454728), (40, 397887), (42, 378940), (56, 284205), (60, 265258), (70, 227364), (84, 189470), (105, 151576), (120, 132629), (140, 113682), (168, 94735), (210, 75788), (280, 56841), (420, 37894), (840, 18947)]