128307456

素因数分解:

$2^8\times 3^3\times {\mathrm{19}}^1\times {\mathrm{977}}^1$

素因数の和:1021

約数の個数: 144

約数和(自身を含む): 399806400

約数和(自身を除く): 271498944

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 32, 36, 38, 48, 54, 57, 64, 72, 76, 96, 108, 114, 128, 144, 152, 171, 192, 216, 228, 256, 288, 304, 342, 384, 432, 456, 513, 576, 608, 684, 768, 864, 912, 977, 1026, 1152, 1216, 1368, 1728, 1824, 1954, 2052, 2304, 2432, 2736, 2931, 3456, 3648, 3908, 4104, 4864, 5472, 5862, 6912, 7296, 7816, 8208, 8793, 10944, 11724, 14592, 15632, 16416, 17586, 18563, 21888, 23448, 26379, 31264, 32832, 35172, 37126, 43776, 46896, 52758, 55689, 62528, 65664, 70344, 74252, 93792, 105516, 111378, 125056, 131328, 140688, 148504, 167067, 187584, 211032, 222756, 250112, 281376, 297008, 334134, 375168, 422064, 445512, 501201, 562752, 594016, 668268, 750336, 844128, 891024, 1002402, 1125504, 1188032, 1336536, 1688256, 1782048, 2004804, 2251008, 2376064, 2673072, 3376512, 3564096, 4009608, 4752128, 5346144, 6753024, 7128192, 8019216, 10692288, 14256384, 16038432, 21384576, 32076864, 42769152, 64153728, 128307456]

約数ペア:

[(1, 128307456), (2, 64153728), (3, 42769152), (4, 32076864), (6, 21384576), (8, 16038432), (9, 14256384), (12, 10692288), (16, 8019216), (18, 7128192), (19, 6753024), (24, 5346144), (27, 4752128), (32, 4009608), (36, 3564096), (38, 3376512), (48, 2673072), (54, 2376064), (57, 2251008), (64, 2004804), (72, 1782048), (76, 1688256), (96, 1336536), (108, 1188032), (114, 1125504), (128, 1002402), (144, 891024), (152, 844128), (171, 750336), (192, 668268), (216, 594016), (228, 562752), (256, 501201), (288, 445512), (304, 422064), (342, 375168), (384, 334134), (432, 297008), (456, 281376), (513, 250112), (576, 222756), (608, 211032), (684, 187584), (768, 167067), (864, 148504), (912, 140688), (977, 131328), (1026, 125056), (1152, 111378), (1216, 105516), (1368, 93792), (1728, 74252), (1824, 70344), (1954, 65664), (2052, 62528), (2304, 55689), (2432, 52758), (2736, 46896), (2931, 43776), (3456, 37126), (3648, 35172), (3908, 32832), (4104, 31264), (4864, 26379), (5472, 23448), (5862, 21888), (6912, 18563), (7296, 17586), (7816, 16416), (8208, 15632), (8793, 14592), (10944, 11724)]