77890390

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1\times {\mathrm{523}}^1$

素因数の和:864

約数の個数: 32

約数和(自身を含む): 143630496

約数和(自身を除く): 65740106

約数列:

[1, 2, 5, 10, 53, 106, 265, 281, 523, 530, 562, 1046, 1405, 2615, 2810, 5230, 14893, 27719, 29786, 55438, 74465, 138595, 146963, 148930, 277190, 293926, 734815, 1469630, 7789039, 15578078, 38945195, 77890390]

約数ペア:

[(1, 77890390), (2, 38945195), (5, 15578078), (10, 7789039), (53, 1469630), (106, 734815), (265, 293926), (281, 277190), (523, 148930), (530, 146963), (562, 138595), (1046, 74465), (1405, 55438), (2615, 29786), (2810, 27719), (5230, 14893)]