20318417920

素因数分解:

$2^{10}\times 5^1\times {\mathrm{1229}}^1\times {\mathrm{3229}}^1$

素因数の和:4483

約数の個数: 88

約数和(自身を含む): 48795157800

約数和(自身を除く): 28476739880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1229, 1280, 2458, 2560, 3229, 4916, 5120, 6145, 6458, 9832, 12290, 12916, 16145, 19664, 24580, 25832, 32290, 39328, 49160, 51664, 64580, 78656, 98320, 103328, 129160, 157312, 196640, 206656, 258320, 314624, 393280, 413312, 516640, 629248, 786560, 826624, 1033280, 1258496, 1573120, 1653248, 2066560, 3146240, 3306496, 3968441, 4133120, 6292480, 7936882, 8266240, 15873764, 16532480, 19842205, 31747528, 39684410, 63495056, 79368820, 126990112, 158737640, 253980224, 317475280, 507960448, 634950560, 1015920896, 1269901120, 2031841792, 2539802240, 4063683584, 5079604480, 10159208960, 20318417920]

約数ペア:

[(1, 20318417920), (2, 10159208960), (4, 5079604480), (5, 4063683584), (8, 2539802240), (10, 2031841792), (16, 1269901120), (20, 1015920896), (32, 634950560), (40, 507960448), (64, 317475280), (80, 253980224), (128, 158737640), (160, 126990112), (256, 79368820), (320, 63495056), (512, 39684410), (640, 31747528), (1024, 19842205), (1229, 16532480), (1280, 15873764), (2458, 8266240), (2560, 7936882), (3229, 6292480), (4916, 4133120), (5120, 3968441), (6145, 3306496), (6458, 3146240), (9832, 2066560), (12290, 1653248), (12916, 1573120), (16145, 1258496), (19664, 1033280), (24580, 826624), (25832, 786560), (32290, 629248), (39328, 516640), (49160, 413312), (51664, 393280), (64580, 314624), (78656, 258320), (98320, 206656), (103328, 196640), (129160, 157312)]