420712160

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{701}}^1$

素因数の和:769

約数の個数: 144

約数和(自身を含む): 1129355136

約数和(自身を除く): 708642976

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 80, 88, 110, 121, 124, 155, 160, 176, 220, 242, 248, 310, 341, 352, 440, 484, 496, 605, 620, 682, 701, 880, 968, 992, 1210, 1240, 1364, 1402, 1705, 1760, 1936, 2420, 2480, 2728, 2804, 3410, 3505, 3751, 3872, 4840, 4960, 5456, 5608, 6820, 7010, 7502, 7711, 9680, 10912, 11216, 13640, 14020, 15004, 15422, 18755, 19360, 21731, 22432, 27280, 28040, 30008, 30844, 37510, 38555, 43462, 54560, 56080, 60016, 61688, 75020, 77110, 84821, 86924, 108655, 112160, 120032, 123376, 150040, 154220, 169642, 173848, 217310, 239041, 246752, 300080, 308440, 339284, 347696, 424105, 434620, 478082, 600160, 616880, 678568, 695392, 848210, 869240, 956164, 1195205, 1233760, 1357136, 1696420, 1738480, 1912328, 2390410, 2629451, 2714272, 3392840, 3476960, 3824656, 4780820, 5258902, 6785680, 7649312, 9561640, 10517804, 13147255, 13571360, 19123280, 21035608, 26294510, 38246560, 42071216, 52589020, 84142432, 105178040, 210356080, 420712160]

約数ペア:

[(1, 420712160), (2, 210356080), (4, 105178040), (5, 84142432), (8, 52589020), (10, 42071216), (11, 38246560), (16, 26294510), (20, 21035608), (22, 19123280), (31, 13571360), (32, 13147255), (40, 10517804), (44, 9561640), (55, 7649312), (62, 6785680), (80, 5258902), (88, 4780820), (110, 3824656), (121, 3476960), (124, 3392840), (155, 2714272), (160, 2629451), (176, 2390410), (220, 1912328), (242, 1738480), (248, 1696420), (310, 1357136), (341, 1233760), (352, 1195205), (440, 956164), (484, 869240), (496, 848210), (605, 695392), (620, 678568), (682, 616880), (701, 600160), (880, 478082), (968, 434620), (992, 424105), (1210, 347696), (1240, 339284), (1364, 308440), (1402, 300080), (1705, 246752), (1760, 239041), (1936, 217310), (2420, 173848), (2480, 169642), (2728, 154220), (2804, 150040), (3410, 123376), (3505, 120032), (3751, 112160), (3872, 108655), (4840, 86924), (4960, 84821), (5456, 77110), (5608, 75020), (6820, 61688), (7010, 60016), (7502, 56080), (7711, 54560), (9680, 43462), (10912, 38555), (11216, 37510), (13640, 30844), (14020, 30008), (15004, 28040), (15422, 27280), (18755, 22432), (19360, 21731)]