388551760

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{1021}}^1$

素因数の和:1172

約数の個数: 80

約数和(自身を含む): 930690432

約数和(自身を除く): 542138672

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 71, 80, 134, 142, 268, 284, 335, 355, 536, 568, 670, 710, 1021, 1072, 1136, 1340, 1420, 2042, 2680, 2840, 4084, 4757, 5105, 5360, 5680, 8168, 9514, 10210, 16336, 19028, 20420, 23785, 38056, 40840, 47570, 68407, 72491, 76112, 81680, 95140, 136814, 144982, 190280, 273628, 289964, 342035, 362455, 380560, 547256, 579928, 684070, 724910, 1094512, 1159856, 1368140, 1449820, 2736280, 2899640, 4856897, 5472560, 5799280, 9713794, 19427588, 24284485, 38855176, 48568970, 77710352, 97137940, 194275880, 388551760]

約数ペア:

[(1, 388551760), (2, 194275880), (4, 97137940), (5, 77710352), (8, 48568970), (10, 38855176), (16, 24284485), (20, 19427588), (40, 9713794), (67, 5799280), (71, 5472560), (80, 4856897), (134, 2899640), (142, 2736280), (268, 1449820), (284, 1368140), (335, 1159856), (355, 1094512), (536, 724910), (568, 684070), (670, 579928), (710, 547256), (1021, 380560), (1072, 362455), (1136, 342035), (1340, 289964), (1420, 273628), (2042, 190280), (2680, 144982), (2840, 136814), (4084, 95140), (4757, 81680), (5105, 76112), (5360, 72491), (5680, 68407), (8168, 47570), (9514, 40840), (10210, 38056), (16336, 23785), (19028, 20420)]