72880808

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:535

約数の個数: 128

約数和(自身を含む): 193536000

約数和(自身を除く): 120655192

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 19, 22, 26, 28, 38, 44, 52, 56, 76, 77, 88, 91, 104, 133, 143, 152, 154, 182, 209, 247, 266, 286, 308, 364, 418, 479, 494, 532, 572, 616, 728, 836, 958, 988, 1001, 1064, 1144, 1463, 1672, 1729, 1916, 1976, 2002, 2717, 2926, 3353, 3458, 3832, 4004, 5269, 5434, 5852, 6227, 6706, 6916, 8008, 9101, 10538, 10868, 11704, 12454, 13412, 13832, 18202, 19019, 21076, 21736, 24908, 26824, 36404, 36883, 38038, 42152, 43589, 49816, 63707, 68497, 72808, 73766, 76076, 87178, 100111, 118313, 127414, 136994, 147532, 152152, 174356, 200222, 236626, 254828, 273988, 295064, 348712, 400444, 473252, 479479, 509656, 547976, 700777, 800888, 828191, 946504, 958958, 1301443, 1401554, 1656382, 1917916, 2602886, 2803108, 3312764, 3835832, 5205772, 5606216, 6625528, 9110101, 10411544, 18220202, 36440404, 72880808]

約数ペア:

[(1, 72880808), (2, 36440404), (4, 18220202), (7, 10411544), (8, 9110101), (11, 6625528), (13, 5606216), (14, 5205772), (19, 3835832), (22, 3312764), (26, 2803108), (28, 2602886), (38, 1917916), (44, 1656382), (52, 1401554), (56, 1301443), (76, 958958), (77, 946504), (88, 828191), (91, 800888), (104, 700777), (133, 547976), (143, 509656), (152, 479479), (154, 473252), (182, 400444), (209, 348712), (247, 295064), (266, 273988), (286, 254828), (308, 236626), (364, 200222), (418, 174356), (479, 152152), (494, 147532), (532, 136994), (572, 127414), (616, 118313), (728, 100111), (836, 87178), (958, 76076), (988, 73766), (1001, 72808), (1064, 68497), (1144, 63707), (1463, 49816), (1672, 43589), (1729, 42152), (1916, 38038), (1976, 36883), (2002, 36404), (2717, 26824), (2926, 24908), (3353, 21736), (3458, 21076), (3832, 19019), (4004, 18202), (5269, 13832), (5434, 13412), (5852, 12454), (6227, 11704), (6706, 10868), (6916, 10538), (8008, 9101)]