19441280

素因数分解:

$2^7\times 5^1\times {\mathrm{37}}^1\times {\mathrm{821}}^1$

素因数の和:877

約数の個数: 64

約数和(自身を含む): 47791080

約数和(自身を除く): 28349800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 37, 40, 64, 74, 80, 128, 148, 160, 185, 296, 320, 370, 592, 640, 740, 821, 1184, 1480, 1642, 2368, 2960, 3284, 4105, 4736, 5920, 6568, 8210, 11840, 13136, 16420, 23680, 26272, 30377, 32840, 52544, 60754, 65680, 105088, 121508, 131360, 151885, 243016, 262720, 303770, 486032, 525440, 607540, 972064, 1215080, 1944128, 2430160, 3888256, 4860320, 9720640, 19441280]

約数ペア:

[(1, 19441280), (2, 9720640), (4, 4860320), (5, 3888256), (8, 2430160), (10, 1944128), (16, 1215080), (20, 972064), (32, 607540), (37, 525440), (40, 486032), (64, 303770), (74, 262720), (80, 243016), (128, 151885), (148, 131360), (160, 121508), (185, 105088), (296, 65680), (320, 60754), (370, 52544), (592, 32840), (640, 30377), (740, 26272), (821, 23680), (1184, 16420), (1480, 13136), (1642, 11840), (2368, 8210), (2960, 6568), (3284, 5920), (4105, 4736)]