20784632

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:468

約数の個数: 64

約数和(自身を含む): 46310400

約数和(自身を除く): 25525768

約数列:

[1, 2, 4, 8, 11, 19, 22, 31, 38, 44, 62, 76, 88, 124, 152, 209, 248, 341, 401, 418, 589, 682, 802, 836, 1178, 1364, 1604, 1672, 2356, 2728, 3208, 4411, 4712, 6479, 7619, 8822, 12431, 12958, 15238, 17644, 24862, 25916, 30476, 35288, 49724, 51832, 60952, 83809, 99448, 136741, 167618, 236189, 273482, 335236, 472378, 546964, 670472, 944756, 1093928, 1889512, 2598079, 5196158, 10392316, 20784632]

約数ペア:

[(1, 20784632), (2, 10392316), (4, 5196158), (8, 2598079), (11, 1889512), (19, 1093928), (22, 944756), (31, 670472), (38, 546964), (44, 472378), (62, 335236), (76, 273482), (88, 236189), (124, 167618), (152, 136741), (209, 99448), (248, 83809), (341, 60952), (401, 51832), (418, 49724), (589, 35288), (682, 30476), (802, 25916), (836, 24862), (1178, 17644), (1364, 15238), (1604, 12958), (1672, 12431), (2356, 8822), (2728, 7619), (3208, 6479), (4411, 4712)]