217433720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1777}}^1$

素因数の和:1837

約数の個数: 128

約数和(自身を含む): 614476800

約数和(自身を除く): 397043080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 184, 190, 230, 266, 280, 322, 380, 437, 460, 532, 644, 665, 760, 805, 874, 920, 1064, 1288, 1330, 1610, 1748, 1777, 2185, 2660, 3059, 3220, 3496, 3554, 4370, 5320, 6118, 6440, 7108, 8740, 8885, 12236, 12439, 14216, 15295, 17480, 17770, 24472, 24878, 30590, 33763, 35540, 40871, 49756, 61180, 62195, 67526, 71080, 81742, 99512, 122360, 124390, 135052, 163484, 168815, 204355, 236341, 248780, 270104, 286097, 326968, 337630, 408710, 472682, 497560, 572194, 675260, 776549, 817420, 945364, 1144388, 1181705, 1350520, 1430485, 1553098, 1634840, 1890728, 2288776, 2363410, 2860970, 3106196, 3882745, 4726820, 5435843, 5721940, 6212392, 7765490, 9453640, 10871686, 11443880, 15530980, 21743372, 27179215, 31061960, 43486744, 54358430, 108716860, 217433720]

約数ペア:

[(1, 217433720), (2, 108716860), (4, 54358430), (5, 43486744), (7, 31061960), (8, 27179215), (10, 21743372), (14, 15530980), (19, 11443880), (20, 10871686), (23, 9453640), (28, 7765490), (35, 6212392), (38, 5721940), (40, 5435843), (46, 4726820), (56, 3882745), (70, 3106196), (76, 2860970), (92, 2363410), (95, 2288776), (115, 1890728), (133, 1634840), (140, 1553098), (152, 1430485), (161, 1350520), (184, 1181705), (190, 1144388), (230, 945364), (266, 817420), (280, 776549), (322, 675260), (380, 572194), (437, 497560), (460, 472682), (532, 408710), (644, 337630), (665, 326968), (760, 286097), (805, 270104), (874, 248780), (920, 236341), (1064, 204355), (1288, 168815), (1330, 163484), (1610, 135052), (1748, 124390), (1777, 122360), (2185, 99512), (2660, 81742), (3059, 71080), (3220, 67526), (3496, 62195), (3554, 61180), (4370, 49756), (5320, 40871), (6118, 35540), (6440, 33763), (7108, 30590), (8740, 24878), (8885, 24472), (12236, 17770), (12439, 17480), (14216, 15295)]