21688281960

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2545573}}^1$

素因数の和:2545658

約数の個数: 64

約数和(自身を含む): 65981278080

約数和(自身を除く): 44292996120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 71, 120, 142, 213, 284, 355, 426, 568, 710, 852, 1065, 1420, 1704, 2130, 2840, 4260, 8520, 2545573, 5091146, 7636719, 10182292, 12727865, 15273438, 20364584, 25455730, 30546876, 38183595, 50911460, 61093752, 76367190, 101822920, 152734380, 180735683, 305468760, 361471366, 542207049, 722942732, 903678415, 1084414098, 1445885464, 1807356830, 2168828196, 2711035245, 3614713660, 4337656392, 5422070490, 7229427320, 10844140980, 21688281960]

約数ペア:

[(1, 21688281960), (2, 10844140980), (3, 7229427320), (4, 5422070490), (5, 4337656392), (6, 3614713660), (8, 2711035245), (10, 2168828196), (12, 1807356830), (15, 1445885464), (20, 1084414098), (24, 903678415), (30, 722942732), (40, 542207049), (60, 361471366), (71, 305468760), (120, 180735683), (142, 152734380), (213, 101822920), (284, 76367190), (355, 61093752), (426, 50911460), (568, 38183595), (710, 30546876), (852, 25455730), (1065, 20364584), (1420, 15273438), (1704, 12727865), (2130, 10182292), (2840, 7636719), (4260, 5091146), (8520, 2545573)]