78900975

素因数分解:

$3^2\times 5^2\times {\mathrm{173}}^1\times {\mathrm{2027}}^1$

素因数の和:2216

約数の個数: 36

約数和(自身を含む): 142207416

約数和(自身を除く): 63306441

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 173, 225, 519, 865, 1557, 2027, 2595, 4325, 6081, 7785, 10135, 12975, 18243, 30405, 38925, 50675, 91215, 152025, 350671, 456075, 1052013, 1753355, 3156039, 5260065, 8766775, 15780195, 26300325, 78900975]

約数ペア:

[(1, 78900975), (3, 26300325), (5, 15780195), (9, 8766775), (15, 5260065), (25, 3156039), (45, 1753355), (75, 1052013), (173, 456075), (225, 350671), (519, 152025), (865, 91215), (1557, 50675), (2027, 38925), (2595, 30405), (4325, 18243), (6081, 12975), (7785, 10135)]