66940220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{71}}^1$

素因数の和:203

約数の個数: 96

約数和(自身を含む): 156764160

約数和(自身を除く): 89823940

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 47, 59, 68, 71, 85, 94, 118, 142, 170, 188, 235, 236, 284, 295, 340, 355, 470, 590, 710, 799, 940, 1003, 1180, 1207, 1420, 1598, 2006, 2414, 2773, 3196, 3337, 3995, 4012, 4189, 4828, 5015, 5546, 6035, 6674, 7990, 8378, 10030, 11092, 12070, 13348, 13865, 15980, 16685, 16756, 20060, 20945, 24140, 27730, 33370, 41890, 47141, 55460, 56729, 66740, 71213, 83780, 94282, 113458, 142426, 188564, 196883, 226916, 235705, 283645, 284852, 356065, 393766, 471410, 567290, 712130, 787532, 942820, 984415, 1134580, 1424260, 1968830, 3347011, 3937660, 6694022, 13388044, 16735055, 33470110, 66940220]

約数ペア:

[(1, 66940220), (2, 33470110), (4, 16735055), (5, 13388044), (10, 6694022), (17, 3937660), (20, 3347011), (34, 1968830), (47, 1424260), (59, 1134580), (68, 984415), (71, 942820), (85, 787532), (94, 712130), (118, 567290), (142, 471410), (170, 393766), (188, 356065), (235, 284852), (236, 283645), (284, 235705), (295, 226916), (340, 196883), (355, 188564), (470, 142426), (590, 113458), (710, 94282), (799, 83780), (940, 71213), (1003, 66740), (1180, 56729), (1207, 55460), (1420, 47141), (1598, 41890), (2006, 33370), (2414, 27730), (2773, 24140), (3196, 20945), (3337, 20060), (3995, 16756), (4012, 16685), (4189, 15980), (4828, 13865), (5015, 13348), (5546, 12070), (6035, 11092), (6674, 10030), (7990, 8378)]