20771625

素因数分解:

$3^1\times 5^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 40674816

約数和(自身を除く): 19903191

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 41, 75, 105, 123, 125, 175, 193, 205, 287, 375, 525, 579, 615, 861, 875, 965, 1025, 1351, 1435, 2625, 2895, 3075, 4053, 4305, 4825, 5125, 6755, 7175, 7913, 14475, 15375, 20265, 21525, 23739, 24125, 33775, 35875, 39565, 55391, 72375, 101325, 107625, 118695, 166173, 168875, 197825, 276955, 506625, 593475, 830865, 989125, 1384775, 2967375, 4154325, 6923875, 20771625]

約数ペア:

[(1, 20771625), (3, 6923875), (5, 4154325), (7, 2967375), (15, 1384775), (21, 989125), (25, 830865), (35, 593475), (41, 506625), (75, 276955), (105, 197825), (123, 168875), (125, 166173), (175, 118695), (193, 107625), (205, 101325), (287, 72375), (375, 55391), (525, 39565), (579, 35875), (615, 33775), (861, 24125), (875, 23739), (965, 21525), (1025, 20265), (1351, 15375), (1435, 14475), (2625, 7913), (2895, 7175), (3075, 6755), (4053, 5125), (4305, 4825)]