90168340

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{1627}}^1$

素因数の和:1816

約数の個数: 48

約数和(自身を含む): 201845952

約数和(自身を除く): 111677612

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 163, 170, 326, 340, 652, 815, 1627, 1630, 2771, 3254, 3260, 5542, 6508, 8135, 11084, 13855, 16270, 27659, 27710, 32540, 55318, 55420, 110636, 138295, 265201, 276590, 530402, 553180, 1060804, 1326005, 2652010, 4508417, 5304020, 9016834, 18033668, 22542085, 45084170, 90168340]

約数ペア:

[(1, 90168340), (2, 45084170), (4, 22542085), (5, 18033668), (10, 9016834), (17, 5304020), (20, 4508417), (34, 2652010), (68, 1326005), (85, 1060804), (163, 553180), (170, 530402), (326, 276590), (340, 265201), (652, 138295), (815, 110636), (1627, 55420), (1630, 55318), (2771, 32540), (3254, 27710), (3260, 27659), (5542, 16270), (6508, 13855), (8135, 11084)]