248618240

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:324

約数の個数: 144

約数和(自身を含む): 653818368

約数和(自身を除く): 405200128

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 128, 130, 134, 160, 208, 223, 256, 260, 268, 320, 335, 416, 446, 520, 536, 640, 670, 832, 871, 892, 1040, 1072, 1115, 1280, 1340, 1664, 1742, 1784, 2080, 2144, 2230, 2680, 2899, 3328, 3484, 3568, 4160, 4288, 4355, 4460, 5360, 5798, 6968, 7136, 8320, 8576, 8710, 8920, 10720, 11596, 13936, 14272, 14495, 14941, 16640, 17152, 17420, 17840, 21440, 23192, 27872, 28544, 28990, 29882, 34840, 35680, 42880, 46384, 55744, 57088, 57980, 59764, 69680, 71360, 74705, 85760, 92768, 111488, 115960, 119528, 139360, 142720, 149410, 185536, 194233, 222976, 231920, 239056, 278720, 285440, 298820, 371072, 388466, 463840, 478112, 557440, 597640, 742144, 776932, 927680, 956224, 971165, 1114880, 1195280, 1553864, 1855360, 1912448, 1942330, 2390560, 3107728, 3710720, 3824896, 3884660, 4781120, 6215456, 7769320, 9562240, 12430912, 15538640, 19124480, 24861824, 31077280, 49723648, 62154560, 124309120, 248618240]

約数ペア:

[(1, 248618240), (2, 124309120), (4, 62154560), (5, 49723648), (8, 31077280), (10, 24861824), (13, 19124480), (16, 15538640), (20, 12430912), (26, 9562240), (32, 7769320), (40, 6215456), (52, 4781120), (64, 3884660), (65, 3824896), (67, 3710720), (80, 3107728), (104, 2390560), (128, 1942330), (130, 1912448), (134, 1855360), (160, 1553864), (208, 1195280), (223, 1114880), (256, 971165), (260, 956224), (268, 927680), (320, 776932), (335, 742144), (416, 597640), (446, 557440), (520, 478112), (536, 463840), (640, 388466), (670, 371072), (832, 298820), (871, 285440), (892, 278720), (1040, 239056), (1072, 231920), (1115, 222976), (1280, 194233), (1340, 185536), (1664, 149410), (1742, 142720), (1784, 139360), (2080, 119528), (2144, 115960), (2230, 111488), (2680, 92768), (2899, 85760), (3328, 74705), (3484, 71360), (3568, 69680), (4160, 59764), (4288, 57980), (4355, 57088), (4460, 55744), (5360, 46384), (5798, 42880), (6968, 35680), (7136, 34840), (8320, 29882), (8576, 28990), (8710, 28544), (8920, 27872), (10720, 23192), (11596, 21440), (13936, 17840), (14272, 17420), (14495, 17152), (14941, 16640)]