81778380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{1362973}}^1$

素因数の和:1362985

約数の個数: 24

約数和(自身を含む): 228979632

約数和(自身を除く): 147201252

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 1362973, 2725946, 4088919, 5451892, 6814865, 8177838, 13629730, 16355676, 20444595, 27259460, 40889190, 81778380]

約数ペア:

[(1, 81778380), (2, 40889190), (3, 27259460), (4, 20444595), (5, 16355676), (6, 13629730), (10, 8177838), (12, 6814865), (15, 5451892), (20, 4088919), (30, 2725946), (60, 1362973)]