258085760

素因数分解:

$2^7\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{197}}^1$

素因数の和:328

約数の個数: 128

約数和(自身を含む): 654350400

約数和(自身を除く): 396264640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 64, 80, 89, 92, 115, 128, 160, 178, 184, 197, 230, 320, 356, 368, 394, 445, 460, 640, 712, 736, 788, 890, 920, 985, 1424, 1472, 1576, 1780, 1840, 1970, 2047, 2848, 2944, 3152, 3560, 3680, 3940, 4094, 4531, 5696, 6304, 7120, 7360, 7880, 8188, 9062, 10235, 11392, 12608, 14240, 14720, 15760, 16376, 17533, 18124, 20470, 22655, 25216, 28480, 31520, 32752, 35066, 36248, 40940, 45310, 56960, 63040, 65504, 70132, 72496, 81880, 87665, 90620, 126080, 131008, 140264, 144992, 163760, 175330, 181240, 262016, 280528, 289984, 327520, 350660, 362480, 403259, 561056, 579968, 655040, 701320, 724960, 806518, 1122112, 1310080, 1402640, 1449920, 1613036, 2016295, 2244224, 2805280, 2899840, 3226072, 4032590, 5610560, 6452144, 8065180, 11221120, 12904288, 16130360, 25808576, 32260720, 51617152, 64521440, 129042880, 258085760]

約数ペア:

[(1, 258085760), (2, 129042880), (4, 64521440), (5, 51617152), (8, 32260720), (10, 25808576), (16, 16130360), (20, 12904288), (23, 11221120), (32, 8065180), (40, 6452144), (46, 5610560), (64, 4032590), (80, 3226072), (89, 2899840), (92, 2805280), (115, 2244224), (128, 2016295), (160, 1613036), (178, 1449920), (184, 1402640), (197, 1310080), (230, 1122112), (320, 806518), (356, 724960), (368, 701320), (394, 655040), (445, 579968), (460, 561056), (640, 403259), (712, 362480), (736, 350660), (788, 327520), (890, 289984), (920, 280528), (985, 262016), (1424, 181240), (1472, 175330), (1576, 163760), (1780, 144992), (1840, 140264), (1970, 131008), (2047, 126080), (2848, 90620), (2944, 87665), (3152, 81880), (3560, 72496), (3680, 70132), (3940, 65504), (4094, 63040), (4531, 56960), (5696, 45310), (6304, 40940), (7120, 36248), (7360, 35066), (7880, 32752), (8188, 31520), (9062, 28480), (10235, 25216), (11392, 22655), (12608, 20470), (14240, 18124), (14720, 17533), (15760, 16376)]