20223872080

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{32531}}^1$

素因数の和:32972

約数の個数: 80

約数和(自身を含む): 49617806400

約数和(自身を除く): 29393934320

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 409, 760, 818, 1520, 1636, 2045, 3272, 4090, 6544, 7771, 8180, 15542, 16360, 31084, 32531, 32720, 38855, 62168, 65062, 77710, 124336, 130124, 155420, 162655, 260248, 310840, 325310, 520496, 618089, 621680, 650620, 1236178, 1301240, 2472356, 2602480, 3090445, 4944712, 6180890, 9889424, 12361780, 13305179, 24723560, 26610358, 49447120, 53220716, 66525895, 106441432, 133051790, 212882864, 252798401, 266103580, 505596802, 532207160, 1011193604, 1064414320, 1263992005, 2022387208, 2527984010, 4044774416, 5055968020, 10111936040, 20223872080]

約数ペア:

[(1, 20223872080), (2, 10111936040), (4, 5055968020), (5, 4044774416), (8, 2527984010), (10, 2022387208), (16, 1263992005), (19, 1064414320), (20, 1011193604), (38, 532207160), (40, 505596802), (76, 266103580), (80, 252798401), (95, 212882864), (152, 133051790), (190, 106441432), (304, 66525895), (380, 53220716), (409, 49447120), (760, 26610358), (818, 24723560), (1520, 13305179), (1636, 12361780), (2045, 9889424), (3272, 6180890), (4090, 4944712), (6544, 3090445), (7771, 2602480), (8180, 2472356), (15542, 1301240), (16360, 1236178), (31084, 650620), (32531, 621680), (32720, 618089), (38855, 520496), (62168, 325310), (65062, 310840), (77710, 260248), (124336, 162655), (130124, 155420)]