18661890

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{439}}^1$

素因数の和:571

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 30125310

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 109, 130, 195, 218, 327, 390, 439, 545, 654, 878, 1090, 1317, 1417, 1635, 2195, 2634, 2834, 3270, 4251, 4390, 5707, 6585, 7085, 8502, 11414, 13170, 14170, 17121, 21255, 28535, 34242, 42510, 47851, 57070, 85605, 95702, 143553, 171210, 239255, 287106, 478510, 622063, 717765, 1244126, 1435530, 1866189, 3110315, 3732378, 6220630, 9330945, 18661890]

約数ペア:

[(1, 18661890), (2, 9330945), (3, 6220630), (5, 3732378), (6, 3110315), (10, 1866189), (13, 1435530), (15, 1244126), (26, 717765), (30, 622063), (39, 478510), (65, 287106), (78, 239255), (109, 171210), (130, 143553), (195, 95702), (218, 85605), (327, 57070), (390, 47851), (439, 42510), (545, 34242), (654, 28535), (878, 21255), (1090, 17121), (1317, 14170), (1417, 13170), (1635, 11414), (2195, 8502), (2634, 7085), (2834, 6585), (3270, 5707), (4251, 4390)]