178565920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{293}}^2$

素因数の和:614

約数の個数: 72

約数和(自身を含む): 455868756

約数和(自身を除く): 277302836

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 208, 260, 293, 416, 520, 586, 1040, 1172, 1465, 2080, 2344, 2930, 3809, 4688, 5860, 7618, 9376, 11720, 15236, 19045, 23440, 30472, 38090, 46880, 60944, 76180, 85849, 121888, 152360, 171698, 304720, 343396, 429245, 609440, 686792, 858490, 1116037, 1373584, 1716980, 2232074, 2747168, 3433960, 4464148, 5580185, 6867920, 8928296, 11160370, 13735840, 17856592, 22320740, 35713184, 44641480, 89282960, 178565920]

約数ペア:

[(1, 178565920), (2, 89282960), (4, 44641480), (5, 35713184), (8, 22320740), (10, 17856592), (13, 13735840), (16, 11160370), (20, 8928296), (26, 6867920), (32, 5580185), (40, 4464148), (52, 3433960), (65, 2747168), (80, 2232074), (104, 1716980), (130, 1373584), (160, 1116037), (208, 858490), (260, 686792), (293, 609440), (416, 429245), (520, 343396), (586, 304720), (1040, 171698), (1172, 152360), (1465, 121888), (2080, 85849), (2344, 76180), (2930, 60944), (3809, 46880), (4688, 38090), (5860, 30472), (7618, 23440), (9376, 19045), (11720, 15236)]