2001196880

素因数分解:

$2^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{647}}^1$

素因数の和:765

約数の個数: 120

約数和(自身を含む): 4984073856

約数和(自身を除く): 2982876976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 40, 41, 46, 80, 82, 92, 115, 164, 184, 205, 230, 328, 368, 410, 460, 647, 656, 820, 920, 943, 1294, 1640, 1681, 1840, 1886, 2588, 3235, 3280, 3362, 3772, 4715, 5176, 6470, 6724, 7544, 8405, 9430, 10352, 12940, 13448, 14881, 15088, 16810, 18860, 25880, 26527, 26896, 29762, 33620, 37720, 38663, 51760, 53054, 59524, 67240, 74405, 75440, 77326, 106108, 119048, 132635, 134480, 148810, 154652, 193315, 212216, 238096, 265270, 297620, 309304, 386630, 424432, 530540, 595240, 610121, 618608, 773260, 1061080, 1087607, 1190480, 1220242, 1546520, 2122160, 2175214, 2440484, 3050605, 3093040, 4350428, 4880968, 5438035, 6101210, 8700856, 9761936, 10876070, 12202420, 17401712, 21752140, 24404840, 25014961, 43504280, 48809680, 50029922, 87008560, 100059844, 125074805, 200119688, 250149610, 400239376, 500299220, 1000598440, 2001196880]

約数ペア:

[(1, 2001196880), (2, 1000598440), (4, 500299220), (5, 400239376), (8, 250149610), (10, 200119688), (16, 125074805), (20, 100059844), (23, 87008560), (40, 50029922), (41, 48809680), (46, 43504280), (80, 25014961), (82, 24404840), (92, 21752140), (115, 17401712), (164, 12202420), (184, 10876070), (205, 9761936), (230, 8700856), (328, 6101210), (368, 5438035), (410, 4880968), (460, 4350428), (647, 3093040), (656, 3050605), (820, 2440484), (920, 2175214), (943, 2122160), (1294, 1546520), (1640, 1220242), (1681, 1190480), (1840, 1087607), (1886, 1061080), (2588, 773260), (3235, 618608), (3280, 610121), (3362, 595240), (3772, 530540), (4715, 424432), (5176, 386630), (6470, 309304), (6724, 297620), (7544, 265270), (8405, 238096), (9430, 212216), (10352, 193315), (12940, 154652), (13448, 148810), (14881, 134480), (15088, 132635), (16810, 119048), (18860, 106108), (25880, 77326), (26527, 75440), (26896, 74405), (29762, 67240), (33620, 59524), (37720, 53054), (38663, 51760)]