20823088

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{479}}^1$

素因数の和:530

約数の個数: 80

約数和(自身を含む): 49996800

約数和(自身を除く): 29173712

約数列:

[1, 2, 4, 8, 11, 13, 16, 19, 22, 26, 38, 44, 52, 76, 88, 104, 143, 152, 176, 208, 209, 247, 286, 304, 418, 479, 494, 572, 836, 958, 988, 1144, 1672, 1916, 1976, 2288, 2717, 3344, 3832, 3952, 5269, 5434, 6227, 7664, 9101, 10538, 10868, 12454, 18202, 21076, 21736, 24908, 36404, 42152, 43472, 49816, 68497, 72808, 84304, 99632, 100111, 118313, 136994, 145616, 200222, 236626, 273988, 400444, 473252, 547976, 800888, 946504, 1095952, 1301443, 1601776, 1893008, 2602886, 5205772, 10411544, 20823088]

約数ペア:

[(1, 20823088), (2, 10411544), (4, 5205772), (8, 2602886), (11, 1893008), (13, 1601776), (16, 1301443), (19, 1095952), (22, 946504), (26, 800888), (38, 547976), (44, 473252), (52, 400444), (76, 273988), (88, 236626), (104, 200222), (143, 145616), (152, 136994), (176, 118313), (208, 100111), (209, 99632), (247, 84304), (286, 72808), (304, 68497), (418, 49816), (479, 43472), (494, 42152), (572, 36404), (836, 24908), (958, 21736), (988, 21076), (1144, 18202), (1672, 12454), (1916, 10868), (1976, 10538), (2288, 9101), (2717, 7664), (3344, 6227), (3832, 5434), (3952, 5269)]