291262972

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:452

約数の個数: 144

約数和(自身を含む): 731989440

約数和(自身を除く): 440726468

約数列:

[1, 2, 4, 7, 11, 13, 14, 17, 22, 26, 28, 34, 44, 52, 68, 77, 91, 119, 121, 143, 154, 182, 187, 221, 238, 242, 286, 308, 364, 374, 389, 442, 476, 484, 572, 748, 778, 847, 884, 1001, 1309, 1547, 1556, 1573, 1694, 2002, 2057, 2431, 2618, 2723, 3094, 3146, 3388, 4004, 4114, 4279, 4862, 5057, 5236, 5446, 6188, 6292, 6613, 8228, 8558, 9724, 10114, 10892, 11011, 13226, 14399, 17017, 17116, 20228, 22022, 26452, 26741, 28798, 29953, 34034, 35399, 44044, 46291, 47069, 53482, 55627, 57596, 59906, 68068, 70798, 72743, 85969, 92582, 94138, 106964, 111254, 119812, 141596, 145486, 171938, 185164, 187187, 188276, 222508, 290972, 329483, 343876, 374374, 389389, 509201, 601783, 611897, 658966, 748748, 778778, 800173, 945659, 1018402, 1203566, 1223794, 1317932, 1557556, 1600346, 1891318, 2036804, 2407132, 2447588, 3200692, 3782636, 4283279, 5601211, 6619613, 8566558, 10402249, 11202422, 13239226, 17133116, 20804498, 22404844, 26478452, 41608996, 72815743, 145631486, 291262972]

約数ペア:

[(1, 291262972), (2, 145631486), (4, 72815743), (7, 41608996), (11, 26478452), (13, 22404844), (14, 20804498), (17, 17133116), (22, 13239226), (26, 11202422), (28, 10402249), (34, 8566558), (44, 6619613), (52, 5601211), (68, 4283279), (77, 3782636), (91, 3200692), (119, 2447588), (121, 2407132), (143, 2036804), (154, 1891318), (182, 1600346), (187, 1557556), (221, 1317932), (238, 1223794), (242, 1203566), (286, 1018402), (308, 945659), (364, 800173), (374, 778778), (389, 748748), (442, 658966), (476, 611897), (484, 601783), (572, 509201), (748, 389389), (778, 374374), (847, 343876), (884, 329483), (1001, 290972), (1309, 222508), (1547, 188276), (1556, 187187), (1573, 185164), (1694, 171938), (2002, 145486), (2057, 141596), (2431, 119812), (2618, 111254), (2723, 106964), (3094, 94138), (3146, 92582), (3388, 85969), (4004, 72743), (4114, 70798), (4279, 68068), (4862, 59906), (5057, 57596), (5236, 55627), (5446, 53482), (6188, 47069), (6292, 46291), (6613, 44044), (8228, 35399), (8558, 34034), (9724, 29953), (10114, 28798), (10892, 26741), (11011, 26452), (13226, 22022), (14399, 20228), (17017, 17116)]