64521440

素因数分解:

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

素因数の和:324

約数の個数: 96

約数和(自身を含む): 161663040

約数和(自身を除く): 97141600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 46, 80, 89, 92, 115, 160, 178, 184, 197, 230, 356, 368, 394, 445, 460, 712, 736, 788, 890, 920, 985, 1424, 1576, 1780, 1840, 1970, 2047, 2848, 3152, 3560, 3680, 3940, 4094, 4531, 6304, 7120, 7880, 8188, 9062, 10235, 14240, 15760, 16376, 17533, 18124, 20470, 22655, 31520, 32752, 35066, 36248, 40940, 45310, 65504, 70132, 72496, 81880, 87665, 90620, 140264, 144992, 163760, 175330, 181240, 280528, 327520, 350660, 362480, 403259, 561056, 701320, 724960, 806518, 1402640, 1613036, 2016295, 2805280, 3226072, 4032590, 6452144, 8065180, 12904288, 16130360, 32260720, 64521440]

約数ペア:

[(1, 64521440), (2, 32260720), (4, 16130360), (5, 12904288), (8, 8065180), (10, 6452144), (16, 4032590), (20, 3226072), (23, 2805280), (32, 2016295), (40, 1613036), (46, 1402640), (80, 806518), (89, 724960), (92, 701320), (115, 561056), (160, 403259), (178, 362480), (184, 350660), (197, 327520), (230, 280528), (356, 181240), (368, 175330), (394, 163760), (445, 144992), (460, 140264), (712, 90620), (736, 87665), (788, 81880), (890, 72496), (920, 70132), (985, 65504), (1424, 45310), (1576, 40940), (1780, 36248), (1840, 35066), (1970, 32752), (2047, 31520), (2848, 22655), (3152, 20470), (3560, 18124), (3680, 17533), (3940, 16376), (4094, 15760), (4531, 14240), (6304, 10235), (7120, 9062), (7880, 8188)]