80779850

素因数分解:

$2^1\times 5^2\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{197}}^1$

素因数の和:407

約数の個数: 48

約数和(自身を含む): 154677600

約数和(自身を除く): 73897750

約数列:

[1, 2, 5, 10, 25, 50, 59, 118, 139, 197, 278, 295, 394, 590, 695, 985, 1390, 1475, 1970, 2950, 3475, 4925, 6950, 8201, 9850, 11623, 16402, 23246, 27383, 41005, 54766, 58115, 82010, 116230, 136915, 205025, 273830, 290575, 410050, 581150, 684575, 1369150, 1615597, 3231194, 8077985, 16155970, 40389925, 80779850]

約数ペア:

[(1, 80779850), (2, 40389925), (5, 16155970), (10, 8077985), (25, 3231194), (50, 1615597), (59, 1369150), (118, 684575), (139, 581150), (197, 410050), (278, 290575), (295, 273830), (394, 205025), (590, 136915), (695, 116230), (985, 82010), (1390, 58115), (1475, 54766), (1970, 41005), (2950, 27383), (3475, 23246), (4925, 16402), (6950, 11623), (8201, 9850)]