20198550

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{89}}^2$

素因数の和:210

約数の個数: 72

約数和(自身を含む): 53641656

約数和(自身を除く): 33443106

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 89, 102, 150, 170, 178, 255, 267, 425, 445, 510, 534, 850, 890, 1275, 1335, 1513, 2225, 2550, 2670, 3026, 4450, 4539, 6675, 7565, 7921, 9078, 13350, 15130, 15842, 22695, 23763, 37825, 39605, 45390, 47526, 75650, 79210, 113475, 118815, 134657, 198025, 226950, 237630, 269314, 396050, 403971, 594075, 673285, 807942, 1188150, 1346570, 2019855, 3366425, 4039710, 6732850, 10099275, 20198550]

約数ペア:

[(1, 20198550), (2, 10099275), (3, 6732850), (5, 4039710), (6, 3366425), (10, 2019855), (15, 1346570), (17, 1188150), (25, 807942), (30, 673285), (34, 594075), (50, 403971), (51, 396050), (75, 269314), (85, 237630), (89, 226950), (102, 198025), (150, 134657), (170, 118815), (178, 113475), (255, 79210), (267, 75650), (425, 47526), (445, 45390), (510, 39605), (534, 37825), (850, 23763), (890, 22695), (1275, 15842), (1335, 15130), (1513, 13350), (2225, 9078), (2550, 7921), (2670, 7565), (3026, 6675), (4450, 4539)]