25712820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{20407}}^1$

素因数の和:20429

約数の個数: 72

約数和(自身を含む): 89142144

約数和(自身を除く): 63429324

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 20407, 40814, 61221, 81628, 102035, 122442, 142849, 183663, 204070, 244884, 285698, 306105, 367326, 408140, 428547, 571396, 612210, 714245, 734652, 857094, 918315, 1224420, 1285641, 1428490, 1714188, 1836630, 2142735, 2571282, 2856980, 3673260, 4285470, 5142564, 6428205, 8570940, 12856410, 25712820]

約数ペア:

[(1, 25712820), (2, 12856410), (3, 8570940), (4, 6428205), (5, 5142564), (6, 4285470), (7, 3673260), (9, 2856980), (10, 2571282), (12, 2142735), (14, 1836630), (15, 1714188), (18, 1428490), (20, 1285641), (21, 1224420), (28, 918315), (30, 857094), (35, 734652), (36, 714245), (42, 612210), (45, 571396), (60, 428547), (63, 408140), (70, 367326), (84, 306105), (90, 285698), (105, 244884), (126, 204070), (140, 183663), (180, 142849), (210, 122442), (252, 102035), (315, 81628), (420, 61221), (630, 40814), (1260, 20407)]