254455840

素因数分解:

$2^5\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:626

約数の個数: 96

約数和(自身を含む): 624879360

約数和(自身を除く): 370423520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 41, 79, 80, 82, 158, 160, 164, 205, 316, 328, 395, 410, 491, 632, 656, 790, 820, 982, 1264, 1312, 1580, 1640, 1964, 2455, 2528, 3160, 3239, 3280, 3928, 4910, 6320, 6478, 6560, 7856, 9820, 12640, 12956, 15712, 16195, 19640, 20131, 25912, 32390, 38789, 39280, 40262, 51824, 64780, 77578, 78560, 80524, 100655, 103648, 129560, 155156, 161048, 193945, 201310, 259120, 310312, 322096, 387890, 402620, 518240, 620624, 644192, 775780, 805240, 1241248, 1551560, 1590349, 1610480, 3103120, 3180698, 3220960, 6206240, 6361396, 7951745, 12722792, 15903490, 25445584, 31806980, 50891168, 63613960, 127227920, 254455840]

約数ペア:

[(1, 254455840), (2, 127227920), (4, 63613960), (5, 50891168), (8, 31806980), (10, 25445584), (16, 15903490), (20, 12722792), (32, 7951745), (40, 6361396), (41, 6206240), (79, 3220960), (80, 3180698), (82, 3103120), (158, 1610480), (160, 1590349), (164, 1551560), (205, 1241248), (316, 805240), (328, 775780), (395, 644192), (410, 620624), (491, 518240), (632, 402620), (656, 387890), (790, 322096), (820, 310312), (982, 259120), (1264, 201310), (1312, 193945), (1580, 161048), (1640, 155156), (1964, 129560), (2455, 103648), (2528, 100655), (3160, 80524), (3239, 78560), (3280, 77578), (3928, 64780), (4910, 51824), (6320, 40262), (6478, 39280), (6560, 38789), (7856, 32390), (9820, 25912), (12640, 20131), (12956, 19640), (15712, 16195)]