812779720

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{733}}^1\times {\mathrm{1459}}^1$

素因数の和:2222

約数の個数: 64

約数和(自身を含む): 1928952000

約数和(自身を除く): 1116172280

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 733, 760, 1459, 1466, 2918, 2932, 3665, 5836, 5864, 7295, 7330, 11672, 13927, 14590, 14660, 27721, 27854, 29180, 29320, 55442, 55708, 58360, 69635, 110884, 111416, 138605, 139270, 221768, 277210, 278540, 554420, 557080, 1069447, 1108840, 2138894, 4277788, 5347235, 8555576, 10694470, 20319493, 21388940, 40638986, 42777880, 81277972, 101597465, 162555944, 203194930, 406389860, 812779720]

約数ペア:

[(1, 812779720), (2, 406389860), (4, 203194930), (5, 162555944), (8, 101597465), (10, 81277972), (19, 42777880), (20, 40638986), (38, 21388940), (40, 20319493), (76, 10694470), (95, 8555576), (152, 5347235), (190, 4277788), (380, 2138894), (733, 1108840), (760, 1069447), (1459, 557080), (1466, 554420), (2918, 278540), (2932, 277210), (3665, 221768), (5836, 139270), (5864, 138605), (7295, 111416), (7330, 110884), (11672, 69635), (13927, 58360), (14590, 55708), (14660, 55442), (27721, 29320), (27854, 29180)]