643485164

素因数分解:

$2^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{271}}^1\times {\mathrm{619}}^1$

素因数の和:1038

約数の個数: 48

約数和(自身を含む): 1303249920

約数和(自身を除く): 659764756

約数列:

[1, 2, 4, 7, 14, 28, 137, 271, 274, 542, 548, 619, 959, 1084, 1238, 1897, 1918, 2476, 3794, 3836, 4333, 7588, 8666, 17332, 37127, 74254, 84803, 148508, 167749, 169606, 259889, 335498, 339212, 519778, 593621, 670996, 1039556, 1174243, 1187242, 2348486, 2374484, 4696972, 22981613, 45963226, 91926452, 160871291, 321742582, 643485164]

約数ペア:

[(1, 643485164), (2, 321742582), (4, 160871291), (7, 91926452), (14, 45963226), (28, 22981613), (137, 4696972), (271, 2374484), (274, 2348486), (542, 1187242), (548, 1174243), (619, 1039556), (959, 670996), (1084, 593621), (1238, 519778), (1897, 339212), (1918, 335498), (2476, 259889), (3794, 169606), (3836, 167749), (4333, 148508), (7588, 84803), (8666, 74254), (17332, 37127)]