28928515

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{2591}}^1$

素因数の和:2643

約数の個数: 32

約数和(自身を含む): 44789760

約数和(自身を除く): 15861245

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 145, 203, 319, 385, 1015, 1595, 2233, 2591, 11165, 12955, 18137, 28501, 75139, 90685, 142505, 199507, 375695, 525973, 826529, 997535, 2629865, 4132645, 5785703, 28928515]

約数ペア:

[(1, 28928515), (5, 5785703), (7, 4132645), (11, 2629865), (29, 997535), (35, 826529), (55, 525973), (77, 375695), (145, 199507), (203, 142505), (319, 90685), (385, 75139), (1015, 28501), (1595, 18137), (2233, 12955), (2591, 11165)]