311245480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{2311}}^1$

素因数の和:2379

約数の個数: 128

約数和(自身を含む): 885588480

約数和(自身を除く): 574343000

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 20, 26, 28, 35, 37, 40, 52, 56, 65, 70, 74, 91, 104, 130, 140, 148, 182, 185, 259, 260, 280, 296, 364, 370, 455, 481, 518, 520, 728, 740, 910, 962, 1036, 1295, 1480, 1820, 1924, 2072, 2311, 2405, 2590, 3367, 3640, 3848, 4622, 4810, 5180, 6734, 9244, 9620, 10360, 11555, 13468, 16177, 16835, 18488, 19240, 23110, 26936, 30043, 32354, 33670, 46220, 60086, 64708, 67340, 80885, 85507, 92440, 120172, 129416, 134680, 150215, 161770, 171014, 210301, 240344, 300430, 323540, 342028, 420602, 427535, 598549, 600860, 647080, 684056, 841204, 855070, 1051505, 1111591, 1197098, 1201720, 1682408, 1710140, 2103010, 2223182, 2394196, 2992745, 3420280, 4206020, 4446364, 4788392, 5557955, 5985490, 7781137, 8412040, 8892728, 11115910, 11970980, 15562274, 22231820, 23941960, 31124548, 38905685, 44463640, 62249096, 77811370, 155622740, 311245480]

約数ペア:

[(1, 311245480), (2, 155622740), (4, 77811370), (5, 62249096), (7, 44463640), (8, 38905685), (10, 31124548), (13, 23941960), (14, 22231820), (20, 15562274), (26, 11970980), (28, 11115910), (35, 8892728), (37, 8412040), (40, 7781137), (52, 5985490), (56, 5557955), (65, 4788392), (70, 4446364), (74, 4206020), (91, 3420280), (104, 2992745), (130, 2394196), (140, 2223182), (148, 2103010), (182, 1710140), (185, 1682408), (259, 1201720), (260, 1197098), (280, 1111591), (296, 1051505), (364, 855070), (370, 841204), (455, 684056), (481, 647080), (518, 600860), (520, 598549), (728, 427535), (740, 420602), (910, 342028), (962, 323540), (1036, 300430), (1295, 240344), (1480, 210301), (1820, 171014), (1924, 161770), (2072, 150215), (2311, 134680), (2405, 129416), (2590, 120172), (3367, 92440), (3640, 85507), (3848, 80885), (4622, 67340), (4810, 64708), (5180, 60086), (6734, 46220), (9244, 33670), (9620, 32354), (10360, 30043), (11555, 26936), (13468, 23110), (16177, 19240), (16835, 18488)]