215198984

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{349}}^1$

素因数の和:404

約数の個数: 144

約数和(自身を含む): 557203500

約数和(自身を除く): 342004516

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 49, 52, 56, 77, 88, 91, 98, 104, 121, 143, 154, 182, 196, 242, 286, 308, 349, 364, 392, 484, 539, 572, 616, 637, 698, 728, 847, 968, 1001, 1078, 1144, 1274, 1396, 1573, 1694, 2002, 2156, 2443, 2548, 2792, 3146, 3388, 3839, 4004, 4312, 4537, 4886, 5096, 5929, 6292, 6776, 7007, 7678, 8008, 9074, 9772, 11011, 11858, 12584, 14014, 15356, 17101, 18148, 19544, 22022, 23716, 26873, 28028, 30712, 31759, 34202, 36296, 42229, 44044, 47432, 49907, 53746, 56056, 63518, 68404, 77077, 84458, 88088, 99814, 107492, 127036, 136808, 154154, 168916, 188111, 199628, 214984, 222313, 254072, 295603, 308308, 337832, 349349, 376222, 399256, 444626, 548977, 591206, 616616, 698698, 752444, 889252, 1097954, 1182412, 1397396, 1504888, 1778504, 2069221, 2195908, 2364824, 2445443, 2794792, 3842839, 4138442, 4391816, 4890886, 7685678, 8276884, 9781772, 15371356, 16553768, 19563544, 26899873, 30742712, 53799746, 107599492, 215198984]

約数ペア:

[(1, 215198984), (2, 107599492), (4, 53799746), (7, 30742712), (8, 26899873), (11, 19563544), (13, 16553768), (14, 15371356), (22, 9781772), (26, 8276884), (28, 7685678), (44, 4890886), (49, 4391816), (52, 4138442), (56, 3842839), (77, 2794792), (88, 2445443), (91, 2364824), (98, 2195908), (104, 2069221), (121, 1778504), (143, 1504888), (154, 1397396), (182, 1182412), (196, 1097954), (242, 889252), (286, 752444), (308, 698698), (349, 616616), (364, 591206), (392, 548977), (484, 444626), (539, 399256), (572, 376222), (616, 349349), (637, 337832), (698, 308308), (728, 295603), (847, 254072), (968, 222313), (1001, 214984), (1078, 199628), (1144, 188111), (1274, 168916), (1396, 154154), (1573, 136808), (1694, 127036), (2002, 107492), (2156, 99814), (2443, 88088), (2548, 84458), (2792, 77077), (3146, 68404), (3388, 63518), (3839, 56056), (4004, 53746), (4312, 49907), (4537, 47432), (4886, 44044), (5096, 42229), (5929, 36296), (6292, 34202), (6776, 31759), (7007, 30712), (7678, 28028), (8008, 26873), (9074, 23716), (9772, 22022), (11011, 19544), (11858, 18148), (12584, 17101), (14014, 15356)]