20154786880

素因数分解:

$2^6\times 5^1\times {\mathrm{1409}}^1\times {\mathrm{44701}}^1$

素因数の和:46127

約数の個数: 56

約数和(自身を含む): 48028722840

約数和(自身を除く): 27873935960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 1409, 2818, 5636, 7045, 11272, 14090, 22544, 28180, 44701, 45088, 56360, 89402, 90176, 112720, 178804, 223505, 225440, 357608, 447010, 450880, 715216, 894020, 1430432, 1788040, 2860864, 3576080, 7152160, 14304320, 62983709, 125967418, 251934836, 314918545, 503869672, 629837090, 1007739344, 1259674180, 2015478688, 2519348360, 4030957376, 5038696720, 10077393440, 20154786880]

約数ペア:

[(1, 20154786880), (2, 10077393440), (4, 5038696720), (5, 4030957376), (8, 2519348360), (10, 2015478688), (16, 1259674180), (20, 1007739344), (32, 629837090), (40, 503869672), (64, 314918545), (80, 251934836), (160, 125967418), (320, 62983709), (1409, 14304320), (2818, 7152160), (5636, 3576080), (7045, 2860864), (11272, 1788040), (14090, 1430432), (22544, 894020), (28180, 715216), (44701, 450880), (45088, 447010), (56360, 357608), (89402, 225440), (90176, 223505), (112720, 178804)]