28305388085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{691}}^1\times {\mathrm{701}}^1$

素因数の和:1470

約数の個数: 64

約数和(自身を含む): 39173621760

約数和(自身を除く): 10868233675

約数列:

[1, 5, 13, 29, 31, 65, 145, 155, 377, 403, 691, 701, 899, 1885, 2015, 3455, 3505, 4495, 8983, 9113, 11687, 20039, 20329, 21421, 21731, 44915, 45565, 58435, 100195, 101645, 107105, 108655, 260507, 264277, 278473, 282503, 484391, 621209, 630199, 1302535, 1321385, 1392365, 1412515, 2421955, 3106045, 3150995, 6297083, 8075717, 8192587, 14047339, 15016121, 31485415, 40378585, 40962935, 70236695, 75080605, 182615407, 195209573, 435467509, 913077035, 976047865, 2177337545, 5661077617, 28305388085]

約数ペア:

[(1, 28305388085), (5, 5661077617), (13, 2177337545), (29, 976047865), (31, 913077035), (65, 435467509), (145, 195209573), (155, 182615407), (377, 75080605), (403, 70236695), (691, 40962935), (701, 40378585), (899, 31485415), (1885, 15016121), (2015, 14047339), (3455, 8192587), (3505, 8075717), (4495, 6297083), (8983, 3150995), (9113, 3106045), (11687, 2421955), (20039, 1412515), (20329, 1392365), (21421, 1321385), (21731, 1302535), (44915, 630199), (45565, 621209), (58435, 484391), (100195, 282503), (101645, 278473), (107105, 264277), (108655, 260507)]