406977340

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1987}}^1$

素因数の和:2040

約数の個数: 144

約数和(自身を含む): 1142225280

約数和(自身を除く): 735247940

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 19, 20, 22, 28, 35, 38, 44, 49, 55, 70, 76, 77, 95, 98, 110, 133, 140, 154, 190, 196, 209, 220, 245, 266, 308, 380, 385, 418, 490, 532, 539, 665, 770, 836, 931, 980, 1045, 1078, 1330, 1463, 1540, 1862, 1987, 2090, 2156, 2660, 2695, 2926, 3724, 3974, 4180, 4655, 5390, 5852, 7315, 7948, 9310, 9935, 10241, 10780, 13909, 14630, 18620, 19870, 20482, 21857, 27818, 29260, 37753, 39740, 40964, 43714, 51205, 55636, 69545, 75506, 87428, 97363, 102410, 109285, 139090, 151012, 152999, 188765, 194726, 204820, 218570, 264271, 278180, 305998, 377530, 389452, 415283, 437140, 486815, 528542, 611996, 755060, 764995, 830566, 973630, 1057084, 1070993, 1321355, 1529990, 1661132, 1849897, 1947260, 2076415, 2141986, 2642710, 2906981, 3059980, 3699794, 4152830, 4283972, 5285420, 5354965, 5813962, 7399588, 8305660, 9249485, 10709930, 11627924, 14534905, 18498970, 20348867, 21419860, 29069810, 36997940, 40697734, 58139620, 81395468, 101744335, 203488670, 406977340]

約数ペア:

[(1, 406977340), (2, 203488670), (4, 101744335), (5, 81395468), (7, 58139620), (10, 40697734), (11, 36997940), (14, 29069810), (19, 21419860), (20, 20348867), (22, 18498970), (28, 14534905), (35, 11627924), (38, 10709930), (44, 9249485), (49, 8305660), (55, 7399588), (70, 5813962), (76, 5354965), (77, 5285420), (95, 4283972), (98, 4152830), (110, 3699794), (133, 3059980), (140, 2906981), (154, 2642710), (190, 2141986), (196, 2076415), (209, 1947260), (220, 1849897), (245, 1661132), (266, 1529990), (308, 1321355), (380, 1070993), (385, 1057084), (418, 973630), (490, 830566), (532, 764995), (539, 755060), (665, 611996), (770, 528542), (836, 486815), (931, 437140), (980, 415283), (1045, 389452), (1078, 377530), (1330, 305998), (1463, 278180), (1540, 264271), (1862, 218570), (1987, 204820), (2090, 194726), (2156, 188765), (2660, 152999), (2695, 151012), (2926, 139090), (3724, 109285), (3974, 102410), (4180, 97363), (4655, 87428), (5390, 75506), (5852, 69545), (7315, 55636), (7948, 51205), (9310, 43714), (9935, 40964), (10241, 39740), (10780, 37753), (13909, 29260), (14630, 27818), (18620, 21857), (19870, 20482)]