19289245520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{89269}}^1$

素因数の和:89392

約数の個数: 80

約数和(自身を含む): 46691066640

約数和(自身を除く): 27401821120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 73, 74, 80, 146, 148, 185, 292, 296, 365, 370, 584, 592, 730, 740, 1168, 1460, 1480, 2701, 2920, 2960, 5402, 5840, 10804, 13505, 21608, 27010, 43216, 54020, 89269, 108040, 178538, 216080, 357076, 446345, 714152, 892690, 1428304, 1785380, 3302953, 3570760, 6516637, 6605906, 7141520, 13033274, 13211812, 16514765, 26066548, 26423624, 32583185, 33029530, 52133096, 52847248, 65166370, 66059060, 104266192, 130332740, 132118120, 241115569, 260665480, 264236240, 482231138, 521330960, 964462276, 1205577845, 1928924552, 2411155690, 3857849104, 4822311380, 9644622760, 19289245520]

約数ペア:

[(1, 19289245520), (2, 9644622760), (4, 4822311380), (5, 3857849104), (8, 2411155690), (10, 1928924552), (16, 1205577845), (20, 964462276), (37, 521330960), (40, 482231138), (73, 264236240), (74, 260665480), (80, 241115569), (146, 132118120), (148, 130332740), (185, 104266192), (292, 66059060), (296, 65166370), (365, 52847248), (370, 52133096), (584, 33029530), (592, 32583185), (730, 26423624), (740, 26066548), (1168, 16514765), (1460, 13211812), (1480, 13033274), (2701, 7141520), (2920, 6605906), (2960, 6516637), (5402, 3570760), (5840, 3302953), (10804, 1785380), (13505, 1428304), (21608, 892690), (27010, 714152), (43216, 446345), (54020, 357076), (89269, 216080), (108040, 178538)]