20474172

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{809}}^1$

素因数の和:875

約数の個数: 72

約数和(自身を含む): 56019600

約数和(自身を除く): 35545428

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 37, 38, 57, 74, 76, 111, 114, 148, 171, 222, 228, 333, 342, 444, 666, 684, 703, 809, 1332, 1406, 1618, 2109, 2427, 2812, 3236, 4218, 4854, 6327, 7281, 8436, 9708, 12654, 14562, 15371, 25308, 29124, 29933, 30742, 46113, 59866, 61484, 89799, 92226, 119732, 138339, 179598, 184452, 269397, 276678, 359196, 538794, 553356, 568727, 1077588, 1137454, 1706181, 2274908, 3412362, 5118543, 6824724, 10237086, 20474172]

約数ペア:

[(1, 20474172), (2, 10237086), (3, 6824724), (4, 5118543), (6, 3412362), (9, 2274908), (12, 1706181), (18, 1137454), (19, 1077588), (36, 568727), (37, 553356), (38, 538794), (57, 359196), (74, 276678), (76, 269397), (111, 184452), (114, 179598), (148, 138339), (171, 119732), (222, 92226), (228, 89799), (333, 61484), (342, 59866), (444, 46113), (666, 30742), (684, 29933), (703, 29124), (809, 25308), (1332, 15371), (1406, 14562), (1618, 12654), (2109, 9708), (2427, 8436), (2812, 7281), (3236, 6327), (4218, 4854)]