21825003025

素因数分解:

$5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{673}}^1\times {\mathrm{1151}}^1$

素因数の和:1871

約数の個数: 72

約数和(自身を含む): 32927606784

約数和(自身を除く): 11102603759

約数列:

[1, 5, 7, 23, 25, 35, 49, 115, 161, 175, 245, 575, 673, 805, 1127, 1151, 1225, 3365, 4025, 4711, 5635, 5755, 8057, 15479, 16825, 23555, 26473, 28175, 28775, 32977, 40285, 56399, 77395, 108353, 117775, 132365, 164885, 185311, 201425, 281995, 386975, 541765, 661825, 758471, 774623, 824425, 926555, 1297177, 1409975, 2708825, 3792355, 3873115, 4632775, 5422361, 6485885, 17816329, 18961775, 19365575, 27111805, 32429425, 37956527, 89081645, 124714303, 135559025, 189782635, 445408225, 623571515, 873000121, 948913175, 3117857575, 4365000605, 21825003025]

約数ペア:

[(1, 21825003025), (5, 4365000605), (7, 3117857575), (23, 948913175), (25, 873000121), (35, 623571515), (49, 445408225), (115, 189782635), (161, 135559025), (175, 124714303), (245, 89081645), (575, 37956527), (673, 32429425), (805, 27111805), (1127, 19365575), (1151, 18961775), (1225, 17816329), (3365, 6485885), (4025, 5422361), (4711, 4632775), (5635, 3873115), (5755, 3792355), (8057, 2708825), (15479, 1409975), (16825, 1297177), (23555, 926555), (26473, 824425), (28175, 774623), (28775, 758471), (32977, 661825), (40285, 541765), (56399, 386975), (77395, 281995), (108353, 201425), (117775, 185311), (132365, 164885)]