6640740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{467}}^1$

素因数の和:561

約数の個数: 72

約数和(自身を含む): 20442240

約数和(自身を除く): 13801500

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 79, 90, 158, 180, 237, 316, 395, 467, 474, 711, 790, 934, 948, 1185, 1401, 1422, 1580, 1868, 2335, 2370, 2802, 2844, 3555, 4203, 4670, 4740, 5604, 7005, 7110, 8406, 9340, 14010, 14220, 16812, 21015, 28020, 36893, 42030, 73786, 84060, 110679, 147572, 184465, 221358, 332037, 368930, 442716, 553395, 664074, 737860, 1106790, 1328148, 1660185, 2213580, 3320370, 6640740]

約数ペア:

[(1, 6640740), (2, 3320370), (3, 2213580), (4, 1660185), (5, 1328148), (6, 1106790), (9, 737860), (10, 664074), (12, 553395), (15, 442716), (18, 368930), (20, 332037), (30, 221358), (36, 184465), (45, 147572), (60, 110679), (79, 84060), (90, 73786), (158, 42030), (180, 36893), (237, 28020), (316, 21015), (395, 16812), (467, 14220), (474, 14010), (711, 9340), (790, 8406), (934, 7110), (948, 7005), (1185, 5604), (1401, 4740), (1422, 4670), (1580, 4203), (1868, 3555), (2335, 2844), (2370, 2802)]