78015980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{15061}}^1$

素因数の和:15114

約数の個数: 48

約数和(自身を含む): 192311616

約数和(自身を除く): 114295636

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 15061, 30122, 60244, 75305, 105427, 150610, 210854, 301220, 421708, 527135, 557257, 1054270, 1114514, 2108540, 2229028, 2786285, 3900799, 5572570, 7801598, 11145140, 15603196, 19503995, 39007990, 78015980]

約数ペア:

[(1, 78015980), (2, 39007990), (4, 19503995), (5, 15603196), (7, 11145140), (10, 7801598), (14, 5572570), (20, 3900799), (28, 2786285), (35, 2229028), (37, 2108540), (70, 1114514), (74, 1054270), (140, 557257), (148, 527135), (185, 421708), (259, 301220), (370, 210854), (518, 150610), (740, 105427), (1036, 75305), (1295, 60244), (2590, 30122), (5180, 15061)]