2660840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:91

約数の個数: 128

約数和(自身を含む): 7983360

約数和(自身を除く): 5322520

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 17, 20, 26, 28, 34, 35, 40, 43, 52, 56, 65, 68, 70, 85, 86, 91, 104, 119, 130, 136, 140, 170, 172, 182, 215, 221, 238, 260, 280, 301, 340, 344, 364, 430, 442, 455, 476, 520, 559, 595, 602, 680, 728, 731, 860, 884, 910, 952, 1105, 1118, 1190, 1204, 1462, 1505, 1547, 1720, 1768, 1820, 2210, 2236, 2380, 2408, 2795, 2924, 3010, 3094, 3640, 3655, 3913, 4420, 4472, 4760, 5117, 5590, 5848, 6020, 6188, 7310, 7735, 7826, 8840, 9503, 10234, 11180, 12040, 12376, 14620, 15470, 15652, 19006, 19565, 20468, 22360, 25585, 29240, 30940, 31304, 38012, 39130, 40936, 47515, 51170, 61880, 66521, 76024, 78260, 95030, 102340, 133042, 156520, 190060, 204680, 266084, 332605, 380120, 532168, 665210, 1330420, 2660840]

約数ペア:

[(1, 2660840), (2, 1330420), (4, 665210), (5, 532168), (7, 380120), (8, 332605), (10, 266084), (13, 204680), (14, 190060), (17, 156520), (20, 133042), (26, 102340), (28, 95030), (34, 78260), (35, 76024), (40, 66521), (43, 61880), (52, 51170), (56, 47515), (65, 40936), (68, 39130), (70, 38012), (85, 31304), (86, 30940), (91, 29240), (104, 25585), (119, 22360), (130, 20468), (136, 19565), (140, 19006), (170, 15652), (172, 15470), (182, 14620), (215, 12376), (221, 12040), (238, 11180), (260, 10234), (280, 9503), (301, 8840), (340, 7826), (344, 7735), (364, 7310), (430, 6188), (442, 6020), (455, 5848), (476, 5590), (520, 5117), (559, 4760), (595, 4472), (602, 4420), (680, 3913), (728, 3655), (731, 3640), (860, 3094), (884, 3010), (910, 2924), (952, 2795), (1105, 2408), (1118, 2380), (1190, 2236), (1204, 2210), (1462, 1820), (1505, 1768), (1547, 1720)]