64344880

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1\times {\mathrm{157}}^1$

素因数の和:326

約数の個数: 80

約数和(自身を含む): 155168640

約数和(自身を除く): 90823760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 109, 157, 188, 218, 235, 314, 376, 436, 470, 545, 628, 752, 785, 872, 940, 1090, 1256, 1570, 1744, 1880, 2180, 2512, 3140, 3760, 4360, 5123, 6280, 7379, 8720, 10246, 12560, 14758, 17113, 20492, 25615, 29516, 34226, 36895, 40984, 51230, 59032, 68452, 73790, 81968, 85565, 102460, 118064, 136904, 147580, 171130, 204920, 273808, 295160, 342260, 409840, 590320, 684520, 804311, 1369040, 1608622, 3217244, 4021555, 6434488, 8043110, 12868976, 16086220, 32172440, 64344880]

約数ペア:

[(1, 64344880), (2, 32172440), (4, 16086220), (5, 12868976), (8, 8043110), (10, 6434488), (16, 4021555), (20, 3217244), (40, 1608622), (47, 1369040), (80, 804311), (94, 684520), (109, 590320), (157, 409840), (188, 342260), (218, 295160), (235, 273808), (314, 204920), (376, 171130), (436, 147580), (470, 136904), (545, 118064), (628, 102460), (752, 85565), (785, 81968), (872, 73790), (940, 68452), (1090, 59032), (1256, 51230), (1570, 40984), (1744, 36895), (1880, 34226), (2180, 29516), (2512, 25615), (3140, 20492), (3760, 17113), (4360, 14758), (5123, 12560), (6280, 10246), (7379, 8720)]