28538125

素因数分解:

$5^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{593}}^1$

素因数の和:631

約数の個数: 40

約数和(自身を含む): 44535744

約数和(自身を除く): 15997619

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 125, 175, 275, 385, 593, 625, 875, 1375, 1925, 2965, 4151, 4375, 6523, 6875, 9625, 14825, 20755, 32615, 45661, 48125, 74125, 103775, 163075, 228305, 370625, 518875, 815375, 1141525, 2594375, 4076875, 5707625, 28538125]

約数ペア:

[(1, 28538125), (5, 5707625), (7, 4076875), (11, 2594375), (25, 1141525), (35, 815375), (55, 518875), (77, 370625), (125, 228305), (175, 163075), (275, 103775), (385, 74125), (593, 48125), (625, 45661), (875, 32615), (1375, 20755), (1925, 14825), (2965, 9625), (4151, 6875), (4375, 6523)]