642218178

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{461}}^1\times {\mathrm{809}}^1$

素因数の和:1323

約数の個数: 64

約数和(自身を含む): 1508855040

約数和(自身を除く): 866636862

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 82, 123, 246, 287, 461, 574, 809, 861, 922, 1383, 1618, 1722, 2427, 2766, 3227, 4854, 5663, 6454, 9681, 11326, 16989, 18901, 19362, 33169, 33978, 37802, 56703, 66338, 99507, 113406, 132307, 199014, 232183, 264614, 372949, 396921, 464366, 696549, 745898, 793842, 1118847, 1393098, 2237694, 2610643, 5221286, 7831929, 15290909, 15663858, 30581818, 45872727, 91745454, 107036363, 214072726, 321109089, 642218178]

約数ペア:

[(1, 642218178), (2, 321109089), (3, 214072726), (6, 107036363), (7, 91745454), (14, 45872727), (21, 30581818), (41, 15663858), (42, 15290909), (82, 7831929), (123, 5221286), (246, 2610643), (287, 2237694), (461, 1393098), (574, 1118847), (809, 793842), (861, 745898), (922, 696549), (1383, 464366), (1618, 396921), (1722, 372949), (2427, 264614), (2766, 232183), (3227, 199014), (4854, 132307), (5663, 113406), (6454, 99507), (9681, 66338), (11326, 56703), (16989, 37802), (18901, 33978), (19362, 33169)]