1561921455

素因数分解:

$3^1\times 5^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{12697}}^1$

素因数の和:12903

約数の個数: 32

約数和(自身を含む): 2559916800

約数和(自身を除く): 997995345

約数列:

[1, 3, 5, 15, 59, 139, 177, 295, 417, 695, 885, 2085, 8201, 12697, 24603, 38091, 41005, 63485, 123015, 190455, 749123, 1764883, 2247369, 3745615, 5294649, 8824415, 11236845, 26473245, 104128097, 312384291, 520640485, 1561921455]

約数ペア:

[(1, 1561921455), (3, 520640485), (5, 312384291), (15, 104128097), (59, 26473245), (139, 11236845), (177, 8824415), (295, 5294649), (417, 3745615), (695, 2247369), (885, 1764883), (2085, 749123), (8201, 190455), (12697, 123015), (24603, 63485), (38091, 41005)]