320435720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{42839}}^1$

素因数の和:42878

約数の個数: 64

約数和(自身を含む): 832809600

約数和(自身を除く): 512373880

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 20, 22, 34, 40, 44, 55, 68, 85, 88, 110, 136, 170, 187, 220, 340, 374, 440, 680, 748, 935, 1496, 1870, 3740, 7480, 42839, 85678, 171356, 214195, 342712, 428390, 471229, 728263, 856780, 942458, 1456526, 1713560, 1884916, 2356145, 2913052, 3641315, 3769832, 4712290, 5826104, 7282630, 8010893, 9424580, 14565260, 16021786, 18849160, 29130520, 32043572, 40054465, 64087144, 80108930, 160217860, 320435720]

約数ペア:

[(1, 320435720), (2, 160217860), (4, 80108930), (5, 64087144), (8, 40054465), (10, 32043572), (11, 29130520), (17, 18849160), (20, 16021786), (22, 14565260), (34, 9424580), (40, 8010893), (44, 7282630), (55, 5826104), (68, 4712290), (85, 3769832), (88, 3641315), (110, 2913052), (136, 2356145), (170, 1884916), (187, 1713560), (220, 1456526), (340, 942458), (374, 856780), (440, 728263), (680, 471229), (748, 428390), (935, 342712), (1496, 214195), (1870, 171356), (3740, 85678), (7480, 42839)]