20154368975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{40879}}^1$

素因数の和:40980

約数の個数: 48

約数和(自身を含む): 28316104320

約数和(自身を除く): 8161735345

約数列:

[1, 5, 13, 25, 37, 41, 65, 185, 205, 325, 481, 533, 925, 1025, 1517, 2405, 2665, 7585, 12025, 13325, 19721, 37925, 40879, 98605, 204395, 493025, 531427, 1021975, 1512523, 1676039, 2657135, 7562615, 8380195, 13285675, 19662799, 21788507, 37813075, 41900975, 62013443, 98313995, 108942535, 310067215, 491569975, 544712675, 806174759, 1550336075, 4030873795, 20154368975]

約数ペア:

[(1, 20154368975), (5, 4030873795), (13, 1550336075), (25, 806174759), (37, 544712675), (41, 491569975), (65, 310067215), (185, 108942535), (205, 98313995), (325, 62013443), (481, 41900975), (533, 37813075), (925, 21788507), (1025, 19662799), (1517, 13285675), (2405, 8380195), (2665, 7562615), (7585, 2657135), (12025, 1676039), (13325, 1512523), (19721, 1021975), (37925, 531427), (40879, 493025), (98605, 204395)]