20160923920

素因数分解:

$2^4\times 5^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{19073}}^1$

素因数の和:19340

約数の個数: 80

約数和(自身を含む): 47781285552

約数和(自身を除く): 27620361632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 73, 80, 146, 181, 292, 362, 365, 584, 724, 730, 905, 1168, 1448, 1460, 1810, 2896, 2920, 3620, 5840, 7240, 13213, 14480, 19073, 26426, 38146, 52852, 66065, 76292, 95365, 105704, 132130, 152584, 190730, 211408, 264260, 305168, 381460, 528520, 762920, 1057040, 1392329, 1525840, 2784658, 3452213, 5569316, 6904426, 6961645, 11138632, 13808852, 13923290, 17261065, 22277264, 27617704, 27846580, 34522130, 55235408, 55693160, 69044260, 111386320, 138088520, 252011549, 276177040, 504023098, 1008046196, 1260057745, 2016092392, 2520115490, 4032184784, 5040230980, 10080461960, 20160923920]

約数ペア:

[(1, 20160923920), (2, 10080461960), (4, 5040230980), (5, 4032184784), (8, 2520115490), (10, 2016092392), (16, 1260057745), (20, 1008046196), (40, 504023098), (73, 276177040), (80, 252011549), (146, 138088520), (181, 111386320), (292, 69044260), (362, 55693160), (365, 55235408), (584, 34522130), (724, 27846580), (730, 27617704), (905, 22277264), (1168, 17261065), (1448, 13923290), (1460, 13808852), (1810, 11138632), (2896, 6961645), (2920, 6904426), (3620, 5569316), (5840, 3452213), (7240, 2784658), (13213, 1525840), (14480, 1392329), (19073, 1057040), (26426, 762920), (38146, 528520), (52852, 381460), (66065, 305168), (76292, 264260), (95365, 211408), (105704, 190730), (132130, 152584)]