221459440

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{2749}}^1$

素因数の和:2834

約数の個数: 80

約数和(自身を含む): 552420000

約数和(自身を除く): 330960560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 53, 76, 80, 95, 106, 152, 190, 212, 265, 304, 380, 424, 530, 760, 848, 1007, 1060, 1520, 2014, 2120, 2749, 4028, 4240, 5035, 5498, 8056, 10070, 10996, 13745, 16112, 20140, 21992, 27490, 40280, 43984, 52231, 54980, 80560, 104462, 109960, 145697, 208924, 219920, 261155, 291394, 417848, 522310, 582788, 728485, 835696, 1044620, 1165576, 1456970, 2089240, 2331152, 2768243, 2913940, 4178480, 5536486, 5827880, 11072972, 11655760, 13841215, 22145944, 27682430, 44291888, 55364860, 110729720, 221459440]

約数ペア:

[(1, 221459440), (2, 110729720), (4, 55364860), (5, 44291888), (8, 27682430), (10, 22145944), (16, 13841215), (19, 11655760), (20, 11072972), (38, 5827880), (40, 5536486), (53, 4178480), (76, 2913940), (80, 2768243), (95, 2331152), (106, 2089240), (152, 1456970), (190, 1165576), (212, 1044620), (265, 835696), (304, 728485), (380, 582788), (424, 522310), (530, 417848), (760, 291394), (848, 261155), (1007, 219920), (1060, 208924), (1520, 145697), (2014, 109960), (2120, 104462), (2749, 80560), (4028, 54980), (4240, 52231), (5035, 43984), (5498, 40280), (8056, 27490), (10070, 21992), (10996, 20140), (13745, 16112)]