905208640

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{21269}}^1$

素因数の和:21312

約数の個数: 112

約数和(自身を含む): 2593238400

約数和(自身を除く): 1688029760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 665, 760, 1064, 1120, 1216, 1330, 1520, 2128, 2240, 2660, 3040, 4256, 5320, 6080, 8512, 10640, 21269, 21280, 42538, 42560, 85076, 106345, 148883, 170152, 212690, 297766, 340304, 404111, 425380, 595532, 680608, 744415, 808222, 850760, 1191064, 1361216, 1488830, 1616444, 1701520, 2020555, 2382128, 2828777, 2977660, 3232888, 3403040, 4041110, 4764256, 5657554, 5955320, 6465776, 6806080, 8082220, 9528512, 11315108, 11910640, 12931552, 14143885, 16164440, 22630216, 23821280, 25863104, 28287770, 32328880, 45260432, 47642560, 56575540, 64657760, 90520864, 113151080, 129315520, 181041728, 226302160, 452604320, 905208640]

約数ペア:

[(1, 905208640), (2, 452604320), (4, 226302160), (5, 181041728), (7, 129315520), (8, 113151080), (10, 90520864), (14, 64657760), (16, 56575540), (19, 47642560), (20, 45260432), (28, 32328880), (32, 28287770), (35, 25863104), (38, 23821280), (40, 22630216), (56, 16164440), (64, 14143885), (70, 12931552), (76, 11910640), (80, 11315108), (95, 9528512), (112, 8082220), (133, 6806080), (140, 6465776), (152, 5955320), (160, 5657554), (190, 4764256), (224, 4041110), (266, 3403040), (280, 3232888), (304, 2977660), (320, 2828777), (380, 2382128), (448, 2020555), (532, 1701520), (560, 1616444), (608, 1488830), (665, 1361216), (760, 1191064), (1064, 850760), (1120, 808222), (1216, 744415), (1330, 680608), (1520, 595532), (2128, 425380), (2240, 404111), (2660, 340304), (3040, 297766), (4256, 212690), (5320, 170152), (6080, 148883), (8512, 106345), (10640, 85076), (21269, 42560), (21280, 42538)]