20490210

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83}}^1\times {\mathrm{211}}^1$

素因数の和:320

約数の個数: 96

約数和(自身を含む): 58339008

約数和(自身を除く): 37848798

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 83, 90, 117, 130, 166, 195, 211, 234, 249, 390, 415, 422, 498, 585, 633, 747, 830, 1055, 1079, 1170, 1245, 1266, 1494, 1899, 2110, 2158, 2490, 2743, 3165, 3237, 3735, 3798, 5395, 5486, 6330, 6474, 7470, 8229, 9495, 9711, 10790, 13715, 16185, 16458, 17513, 18990, 19422, 24687, 27430, 32370, 35026, 41145, 48555, 49374, 52539, 82290, 87565, 97110, 105078, 123435, 157617, 175130, 227669, 246870, 262695, 315234, 455338, 525390, 683007, 788085, 1138345, 1366014, 1576170, 2049021, 2276690, 3415035, 4098042, 6830070, 10245105, 20490210]

約数ペア:

[(1, 20490210), (2, 10245105), (3, 6830070), (5, 4098042), (6, 3415035), (9, 2276690), (10, 2049021), (13, 1576170), (15, 1366014), (18, 1138345), (26, 788085), (30, 683007), (39, 525390), (45, 455338), (65, 315234), (78, 262695), (83, 246870), (90, 227669), (117, 175130), (130, 157617), (166, 123435), (195, 105078), (211, 97110), (234, 87565), (249, 82290), (390, 52539), (415, 49374), (422, 48555), (498, 41145), (585, 35026), (633, 32370), (747, 27430), (830, 24687), (1055, 19422), (1079, 18990), (1170, 17513), (1245, 16458), (1266, 16185), (1494, 13715), (1899, 10790), (2110, 9711), (2158, 9495), (2490, 8229), (2743, 7470), (3165, 6474), (3237, 6330), (3735, 5486), (3798, 5395)]