20389950

素因数分解:

$2^1\times 3^2\times 5^2\times 7^1\times {\mathrm{6473}}^1$

素因数の和:6498

約数の個数: 72

約数和(自身を含む): 62616528

約数和(自身を除く): 42226578

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 25, 30, 35, 42, 45, 50, 63, 70, 75, 90, 105, 126, 150, 175, 210, 225, 315, 350, 450, 525, 630, 1050, 1575, 3150, 6473, 12946, 19419, 32365, 38838, 45311, 58257, 64730, 90622, 97095, 116514, 135933, 161825, 194190, 226555, 271866, 291285, 323650, 407799, 453110, 485475, 582570, 679665, 815598, 970950, 1132775, 1359330, 1456425, 2038995, 2265550, 2912850, 3398325, 4077990, 6796650, 10194975, 20389950]

約数ペア:

[(1, 20389950), (2, 10194975), (3, 6796650), (5, 4077990), (6, 3398325), (7, 2912850), (9, 2265550), (10, 2038995), (14, 1456425), (15, 1359330), (18, 1132775), (21, 970950), (25, 815598), (30, 679665), (35, 582570), (42, 485475), (45, 453110), (50, 407799), (63, 323650), (70, 291285), (75, 271866), (90, 226555), (105, 194190), (126, 161825), (150, 135933), (175, 116514), (210, 97095), (225, 90622), (315, 64730), (350, 58257), (450, 45311), (525, 38838), (630, 32365), (1050, 19419), (1575, 12946), (3150, 6473)]