211256820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{223}}^1\times {\mathrm{277}}^1$

素因数の和:534

約数の個数: 144

約数和(自身を含む): 680010240

約数和(自身を除く): 468753420

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 223, 228, 277, 285, 342, 380, 446, 554, 570, 669, 684, 831, 855, 892, 1108, 1115, 1140, 1338, 1385, 1662, 1710, 2007, 2230, 2493, 2676, 2770, 3324, 3345, 3420, 4014, 4155, 4237, 4460, 4986, 5263, 5540, 6690, 8028, 8310, 8474, 9972, 10035, 10526, 12465, 12711, 13380, 15789, 16620, 16948, 20070, 21052, 21185, 24930, 25422, 26315, 31578, 38133, 40140, 42370, 47367, 49860, 50844, 52630, 61771, 63156, 63555, 76266, 78945, 84740, 94734, 105260, 123542, 127110, 152532, 157890, 185313, 189468, 190665, 236835, 247084, 254220, 308855, 315780, 370626, 381330, 473670, 555939, 617710, 741252, 762660, 926565, 947340, 1111878, 1173649, 1235420, 1853130, 2223756, 2347298, 2779695, 3520947, 3706260, 4694596, 5559390, 5868245, 7041894, 10562841, 11118780, 11736490, 14083788, 17604735, 21125682, 23472980, 35209470, 42251364, 52814205, 70418940, 105628410, 211256820]

約数ペア:

[(1, 211256820), (2, 105628410), (3, 70418940), (4, 52814205), (5, 42251364), (6, 35209470), (9, 23472980), (10, 21125682), (12, 17604735), (15, 14083788), (18, 11736490), (19, 11118780), (20, 10562841), (30, 7041894), (36, 5868245), (38, 5559390), (45, 4694596), (57, 3706260), (60, 3520947), (76, 2779695), (90, 2347298), (95, 2223756), (114, 1853130), (171, 1235420), (180, 1173649), (190, 1111878), (223, 947340), (228, 926565), (277, 762660), (285, 741252), (342, 617710), (380, 555939), (446, 473670), (554, 381330), (570, 370626), (669, 315780), (684, 308855), (831, 254220), (855, 247084), (892, 236835), (1108, 190665), (1115, 189468), (1140, 185313), (1338, 157890), (1385, 152532), (1662, 127110), (1710, 123542), (2007, 105260), (2230, 94734), (2493, 84740), (2676, 78945), (2770, 76266), (3324, 63555), (3345, 63156), (3420, 61771), (4014, 52630), (4155, 50844), (4237, 49860), (4460, 47367), (4986, 42370), (5263, 40140), (5540, 38133), (6690, 31578), (8028, 26315), (8310, 25422), (8474, 24930), (9972, 21185), (10035, 21052), (10526, 20070), (12465, 16948), (12711, 16620), (13380, 15789)]