256009380

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{179}}^1\times {\mathrm{197}}^1$

素因数の和:410

約数の個数: 144

約数和(自身を含む): 796340160

約数和(自身を除く): 540330780

約数列:

[1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 121, 132, 165, 179, 197, 220, 242, 330, 358, 363, 394, 484, 537, 591, 605, 660, 716, 726, 788, 895, 985, 1074, 1182, 1210, 1452, 1790, 1815, 1969, 1970, 2148, 2167, 2364, 2420, 2685, 2955, 3580, 3630, 3938, 3940, 4334, 5370, 5907, 5910, 6501, 7260, 7876, 8668, 9845, 10740, 10835, 11814, 11820, 13002, 19690, 21659, 21670, 23628, 23837, 26004, 29535, 32505, 35263, 39380, 43318, 43340, 47674, 59070, 64977, 65010, 70526, 71511, 86636, 95348, 105789, 108295, 118140, 119185, 129954, 130020, 141052, 143022, 176315, 211578, 216590, 238370, 259908, 286044, 324885, 352630, 357555, 387893, 423156, 433180, 476740, 528945, 649770, 705260, 715110, 775786, 1057890, 1163679, 1299540, 1430220, 1551572, 1939465, 2115780, 2327358, 3878930, 4266823, 4654716, 5818395, 7757860, 8533646, 11636790, 12800469, 17067292, 21334115, 23273580, 25600938, 42668230, 51201876, 64002345, 85336460, 128004690, 256009380]

約数ペア:

[(1, 256009380), (2, 128004690), (3, 85336460), (4, 64002345), (5, 51201876), (6, 42668230), (10, 25600938), (11, 23273580), (12, 21334115), (15, 17067292), (20, 12800469), (22, 11636790), (30, 8533646), (33, 7757860), (44, 5818395), (55, 4654716), (60, 4266823), (66, 3878930), (110, 2327358), (121, 2115780), (132, 1939465), (165, 1551572), (179, 1430220), (197, 1299540), (220, 1163679), (242, 1057890), (330, 775786), (358, 715110), (363, 705260), (394, 649770), (484, 528945), (537, 476740), (591, 433180), (605, 423156), (660, 387893), (716, 357555), (726, 352630), (788, 324885), (895, 286044), (985, 259908), (1074, 238370), (1182, 216590), (1210, 211578), (1452, 176315), (1790, 143022), (1815, 141052), (1969, 130020), (1970, 129954), (2148, 119185), (2167, 118140), (2364, 108295), (2420, 105789), (2685, 95348), (2955, 86636), (3580, 71511), (3630, 70526), (3938, 65010), (3940, 64977), (4334, 59070), (5370, 47674), (5907, 43340), (5910, 43318), (6501, 39380), (7260, 35263), (7876, 32505), (8668, 29535), (9845, 26004), (10740, 23837), (10835, 23628), (11814, 21670), (11820, 21659), (13002, 19690)]