321217040

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{401}}^1$

素因数の和:481

約数の個数: 160

約数和(自身を含む): 861373440

約数和(自身を除く): 540156400

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 34, 38, 40, 62, 68, 76, 80, 85, 95, 124, 136, 152, 155, 170, 190, 248, 272, 304, 310, 323, 340, 380, 401, 496, 527, 589, 620, 646, 680, 760, 802, 1054, 1178, 1240, 1292, 1360, 1520, 1604, 1615, 2005, 2108, 2356, 2480, 2584, 2635, 2945, 3208, 3230, 4010, 4216, 4712, 5168, 5270, 5890, 6416, 6460, 6817, 7619, 8020, 8432, 9424, 10013, 10540, 11780, 12431, 12920, 13634, 15238, 16040, 20026, 21080, 23560, 24862, 25840, 27268, 30476, 32080, 34085, 38095, 40052, 42160, 47120, 49724, 50065, 54536, 60952, 62155, 68170, 76190, 80104, 99448, 100130, 109072, 121904, 124310, 129523, 136340, 152380, 160208, 198896, 200260, 211327, 236189, 248620, 259046, 272680, 304760, 400520, 422654, 472378, 497240, 518092, 545360, 609520, 647615, 801040, 845308, 944756, 994480, 1036184, 1056635, 1180945, 1295230, 1690616, 1889512, 2072368, 2113270, 2361890, 2590460, 3381232, 3779024, 4015213, 4226540, 4723780, 5180920, 8030426, 8453080, 9447560, 10361840, 16060852, 16906160, 18895120, 20076065, 32121704, 40152130, 64243408, 80304260, 160608520, 321217040]

約数ペア:

[(1, 321217040), (2, 160608520), (4, 80304260), (5, 64243408), (8, 40152130), (10, 32121704), (16, 20076065), (17, 18895120), (19, 16906160), (20, 16060852), (31, 10361840), (34, 9447560), (38, 8453080), (40, 8030426), (62, 5180920), (68, 4723780), (76, 4226540), (80, 4015213), (85, 3779024), (95, 3381232), (124, 2590460), (136, 2361890), (152, 2113270), (155, 2072368), (170, 1889512), (190, 1690616), (248, 1295230), (272, 1180945), (304, 1056635), (310, 1036184), (323, 994480), (340, 944756), (380, 845308), (401, 801040), (496, 647615), (527, 609520), (589, 545360), (620, 518092), (646, 497240), (680, 472378), (760, 422654), (802, 400520), (1054, 304760), (1178, 272680), (1240, 259046), (1292, 248620), (1360, 236189), (1520, 211327), (1604, 200260), (1615, 198896), (2005, 160208), (2108, 152380), (2356, 136340), (2480, 129523), (2584, 124310), (2635, 121904), (2945, 109072), (3208, 100130), (3230, 99448), (4010, 80104), (4216, 76190), (4712, 68170), (5168, 62155), (5270, 60952), (5890, 54536), (6416, 50065), (6460, 49724), (6817, 47120), (7619, 42160), (8020, 40052), (8432, 38095), (9424, 34085), (10013, 32080), (10540, 30476), (11780, 27268), (12431, 25840), (12920, 24862), (13634, 23560), (15238, 21080), (16040, 20026)]