668849020

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{2113}}^1$

素因数の和:2172

約数の個数: 144

約数和(自身を含む): 1821929760

約数和(自身を除く): 1153080740

約数列:

[1, 2, 4, 5, 7, 10, 14, 17, 19, 20, 28, 34, 35, 38, 49, 68, 70, 76, 85, 95, 98, 119, 133, 140, 170, 190, 196, 238, 245, 266, 323, 340, 380, 476, 490, 532, 595, 646, 665, 833, 931, 980, 1190, 1292, 1330, 1615, 1666, 1862, 2113, 2261, 2380, 2660, 3230, 3332, 3724, 4165, 4226, 4522, 4655, 6460, 8330, 8452, 9044, 9310, 10565, 11305, 14791, 15827, 16660, 18620, 21130, 22610, 29582, 31654, 35921, 40147, 42260, 45220, 59164, 63308, 71842, 73955, 79135, 80294, 103537, 143684, 147910, 158270, 160588, 179605, 200735, 207074, 251447, 281029, 295820, 316540, 359210, 401470, 414148, 502894, 517685, 562058, 682499, 718420, 802940, 1005788, 1035370, 1124116, 1257235, 1364998, 1405145, 1760129, 1967203, 2070740, 2514470, 2729996, 2810290, 3412495, 3520258, 3934406, 4777493, 5028940, 5620580, 6824990, 7040516, 7868812, 8800645, 9554986, 9836015, 13649980, 17601290, 19109972, 19672030, 23887465, 33442451, 35202580, 39344060, 47774930, 66884902, 95549860, 133769804, 167212255, 334424510, 668849020]

約数ペア:

[(1, 668849020), (2, 334424510), (4, 167212255), (5, 133769804), (7, 95549860), (10, 66884902), (14, 47774930), (17, 39344060), (19, 35202580), (20, 33442451), (28, 23887465), (34, 19672030), (35, 19109972), (38, 17601290), (49, 13649980), (68, 9836015), (70, 9554986), (76, 8800645), (85, 7868812), (95, 7040516), (98, 6824990), (119, 5620580), (133, 5028940), (140, 4777493), (170, 3934406), (190, 3520258), (196, 3412495), (238, 2810290), (245, 2729996), (266, 2514470), (323, 2070740), (340, 1967203), (380, 1760129), (476, 1405145), (490, 1364998), (532, 1257235), (595, 1124116), (646, 1035370), (665, 1005788), (833, 802940), (931, 718420), (980, 682499), (1190, 562058), (1292, 517685), (1330, 502894), (1615, 414148), (1666, 401470), (1862, 359210), (2113, 316540), (2261, 295820), (2380, 281029), (2660, 251447), (3230, 207074), (3332, 200735), (3724, 179605), (4165, 160588), (4226, 158270), (4522, 147910), (4655, 143684), (6460, 103537), (8330, 80294), (8452, 79135), (9044, 73955), (9310, 71842), (10565, 63308), (11305, 59164), (14791, 45220), (15827, 42260), (16660, 40147), (18620, 35921), (21130, 31654), (22610, 29582)]