2021320625

素因数分解:

$5^4\times {\mathrm{53}}^1\times {\mathrm{139}}^1\times {\mathrm{439}}^1$

素因数の和:651

約数の個数: 40

約数和(自身を含む): 2597918400

約数和(自身を除く): 576597775

約数列:

[1, 5, 25, 53, 125, 139, 265, 439, 625, 695, 1325, 2195, 3475, 6625, 7367, 10975, 17375, 23267, 33125, 36835, 54875, 61021, 86875, 116335, 184175, 274375, 305105, 581675, 920875, 1525525, 2908375, 3234113, 4604375, 7627625, 14541875, 16170565, 38138125, 80852825, 404264125, 2021320625]

約数ペア:

[(1, 2021320625), (5, 404264125), (25, 80852825), (53, 38138125), (125, 16170565), (139, 14541875), (265, 7627625), (439, 4604375), (625, 3234113), (695, 2908375), (1325, 1525525), (2195, 920875), (3475, 581675), (6625, 305105), (7367, 274375), (10975, 184175), (17375, 116335), (23267, 86875), (33125, 61021), (36835, 54875)]