65440920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 206115840

約数和(自身を除く): 140674920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 41, 47, 60, 82, 94, 120, 123, 141, 164, 188, 205, 235, 246, 282, 283, 328, 376, 410, 470, 492, 564, 566, 615, 705, 820, 849, 940, 984, 1128, 1132, 1230, 1410, 1415, 1640, 1698, 1880, 1927, 2264, 2460, 2820, 2830, 3396, 3854, 4245, 4920, 5640, 5660, 5781, 6792, 7708, 8490, 9635, 11320, 11562, 11603, 13301, 15416, 16980, 19270, 23124, 23206, 26602, 28905, 33960, 34809, 38540, 39903, 46248, 46412, 53204, 57810, 58015, 66505, 69618, 77080, 79806, 92824, 106408, 115620, 116030, 133010, 139236, 159612, 174045, 199515, 231240, 232060, 266020, 278472, 319224, 348090, 399030, 464120, 532040, 545341, 696180, 798060, 1090682, 1392360, 1596120, 1636023, 2181364, 2726705, 3272046, 4362728, 5453410, 6544092, 8180115, 10906820, 13088184, 16360230, 21813640, 32720460, 65440920]

約数ペア:

[(1, 65440920), (2, 32720460), (3, 21813640), (4, 16360230), (5, 13088184), (6, 10906820), (8, 8180115), (10, 6544092), (12, 5453410), (15, 4362728), (20, 3272046), (24, 2726705), (30, 2181364), (40, 1636023), (41, 1596120), (47, 1392360), (60, 1090682), (82, 798060), (94, 696180), (120, 545341), (123, 532040), (141, 464120), (164, 399030), (188, 348090), (205, 319224), (235, 278472), (246, 266020), (282, 232060), (283, 231240), (328, 199515), (376, 174045), (410, 159612), (470, 139236), (492, 133010), (564, 116030), (566, 115620), (615, 106408), (705, 92824), (820, 79806), (849, 77080), (940, 69618), (984, 66505), (1128, 58015), (1132, 57810), (1230, 53204), (1410, 46412), (1415, 46248), (1640, 39903), (1698, 38540), (1880, 34809), (1927, 33960), (2264, 28905), (2460, 26602), (2820, 23206), (2830, 23124), (3396, 19270), (3854, 16980), (4245, 15416), (4920, 13301), (5640, 11603), (5660, 11562), (5781, 11320), (6792, 9635), (7708, 8490)]