80013560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{563}}^1$

素因数の和:621

約数の個数: 128

約数和(自身を含む): 219283200

約数和(自身を除く): 139269640

約数列:

[1, 2, 4, 5, 8, 10, 11, 17, 19, 20, 22, 34, 38, 40, 44, 55, 68, 76, 85, 88, 95, 110, 136, 152, 170, 187, 190, 209, 220, 323, 340, 374, 380, 418, 440, 563, 646, 680, 748, 760, 836, 935, 1045, 1126, 1292, 1496, 1615, 1672, 1870, 2090, 2252, 2584, 2815, 3230, 3553, 3740, 4180, 4504, 5630, 6193, 6460, 7106, 7480, 8360, 9571, 10697, 11260, 12386, 12920, 14212, 17765, 19142, 21394, 22520, 24772, 28424, 30965, 35530, 38284, 42788, 47855, 49544, 53485, 61930, 71060, 76568, 85576, 95710, 105281, 106970, 117667, 123860, 142120, 181849, 191420, 210562, 213940, 235334, 247720, 363698, 382840, 421124, 427880, 470668, 526405, 588335, 727396, 842248, 909245, 941336, 1052810, 1176670, 1454792, 1818490, 2000339, 2105620, 2353340, 3636980, 4000678, 4211240, 4706680, 7273960, 8001356, 10001695, 16002712, 20003390, 40006780, 80013560]

約数ペア:

[(1, 80013560), (2, 40006780), (4, 20003390), (5, 16002712), (8, 10001695), (10, 8001356), (11, 7273960), (17, 4706680), (19, 4211240), (20, 4000678), (22, 3636980), (34, 2353340), (38, 2105620), (40, 2000339), (44, 1818490), (55, 1454792), (68, 1176670), (76, 1052810), (85, 941336), (88, 909245), (95, 842248), (110, 727396), (136, 588335), (152, 526405), (170, 470668), (187, 427880), (190, 421124), (209, 382840), (220, 363698), (323, 247720), (340, 235334), (374, 213940), (380, 210562), (418, 191420), (440, 181849), (563, 142120), (646, 123860), (680, 117667), (748, 106970), (760, 105281), (836, 95710), (935, 85576), (1045, 76568), (1126, 71060), (1292, 61930), (1496, 53485), (1615, 49544), (1672, 47855), (1870, 42788), (2090, 38284), (2252, 35530), (2584, 30965), (2815, 28424), (3230, 24772), (3553, 22520), (3740, 21394), (4180, 19142), (4504, 17765), (5630, 14212), (6193, 12920), (6460, 12386), (7106, 11260), (7480, 10697), (8360, 9571)]