28725625

素因数分解:

$5^4\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1$

素因数の和:139

約数の個数: 40

約数和(自身を含む): 39362400

約数和(自身を除く): 10636775

約数列:

[1, 5, 19, 25, 41, 59, 95, 125, 205, 295, 475, 625, 779, 1025, 1121, 1475, 2375, 2419, 3895, 5125, 5605, 7375, 11875, 12095, 19475, 25625, 28025, 36875, 45961, 60475, 97375, 140125, 229805, 302375, 486875, 700625, 1149025, 1511875, 5745125, 28725625]

約数ペア:

[(1, 28725625), (5, 5745125), (19, 1511875), (25, 1149025), (41, 700625), (59, 486875), (95, 302375), (125, 229805), (205, 140125), (295, 97375), (475, 60475), (625, 45961), (779, 36875), (1025, 28025), (1121, 25625), (1475, 19475), (2375, 12095), (2419, 11875), (3895, 7375), (5125, 5605)]