828915280

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{619}}^1\times {\mathrm{881}}^1$

素因数の和:1532

約数の個数: 80

約数和(自身を含む): 2034244800

約数和(自身を除く): 1205329520

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 619, 760, 881, 1238, 1520, 1762, 2476, 3095, 3524, 4405, 4952, 6190, 7048, 8810, 9904, 11761, 12380, 14096, 16739, 17620, 23522, 24760, 33478, 35240, 47044, 49520, 58805, 66956, 70480, 83695, 94088, 117610, 133912, 167390, 188176, 235220, 267824, 334780, 470440, 545339, 669560, 940880, 1090678, 1339120, 2181356, 2726695, 4362712, 5453390, 8725424, 10361441, 10906780, 20722882, 21813560, 41445764, 43627120, 51807205, 82891528, 103614410, 165783056, 207228820, 414457640, 828915280]

約数ペア:

[(1, 828915280), (2, 414457640), (4, 207228820), (5, 165783056), (8, 103614410), (10, 82891528), (16, 51807205), (19, 43627120), (20, 41445764), (38, 21813560), (40, 20722882), (76, 10906780), (80, 10361441), (95, 8725424), (152, 5453390), (190, 4362712), (304, 2726695), (380, 2181356), (619, 1339120), (760, 1090678), (881, 940880), (1238, 669560), (1520, 545339), (1762, 470440), (2476, 334780), (3095, 267824), (3524, 235220), (4405, 188176), (4952, 167390), (6190, 133912), (7048, 117610), (8810, 94088), (9904, 83695), (11761, 70480), (12380, 66956), (14096, 58805), (16739, 49520), (17620, 47044), (23522, 35240), (24760, 33478)]