257955360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{617}}^1$

素因数の和:715

約数の個数: 192

約数和(自身を含む): 889564032

約数和(自身を除く): 631608672

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 67, 78, 80, 96, 104, 120, 130, 134, 156, 160, 195, 201, 208, 240, 260, 268, 312, 335, 390, 402, 416, 480, 520, 536, 617, 624, 670, 780, 804, 871, 1005, 1040, 1072, 1234, 1248, 1340, 1560, 1608, 1742, 1851, 2010, 2080, 2144, 2468, 2613, 2680, 3085, 3120, 3216, 3484, 3702, 4020, 4355, 4936, 5226, 5360, 6170, 6240, 6432, 6968, 7404, 8021, 8040, 8710, 9255, 9872, 10452, 10720, 12340, 13065, 13936, 14808, 16042, 16080, 17420, 18510, 19744, 20904, 24063, 24680, 26130, 27872, 29616, 32084, 32160, 34840, 37020, 40105, 41339, 41808, 48126, 49360, 52260, 59232, 64168, 69680, 74040, 80210, 82678, 83616, 96252, 98720, 104520, 120315, 124017, 128336, 139360, 148080, 160420, 165356, 192504, 206695, 209040, 240630, 248034, 256672, 296160, 320840, 330712, 385008, 413390, 418080, 481260, 496068, 537407, 620085, 641680, 661424, 770016, 826780, 962520, 992136, 1074814, 1240170, 1283360, 1322848, 1612221, 1653560, 1925040, 1984272, 2149628, 2480340, 2687035, 3224442, 3307120, 3850080, 3968544, 4299256, 4960680, 5374070, 6448884, 6614240, 8061105, 8598512, 9921360, 10748140, 12897768, 16122210, 17197024, 19842720, 21496280, 25795536, 32244420, 42992560, 51591072, 64488840, 85985120, 128977680, 257955360]

約数ペア:

[(1, 257955360), (2, 128977680), (3, 85985120), (4, 64488840), (5, 51591072), (6, 42992560), (8, 32244420), (10, 25795536), (12, 21496280), (13, 19842720), (15, 17197024), (16, 16122210), (20, 12897768), (24, 10748140), (26, 9921360), (30, 8598512), (32, 8061105), (39, 6614240), (40, 6448884), (48, 5374070), (52, 4960680), (60, 4299256), (65, 3968544), (67, 3850080), (78, 3307120), (80, 3224442), (96, 2687035), (104, 2480340), (120, 2149628), (130, 1984272), (134, 1925040), (156, 1653560), (160, 1612221), (195, 1322848), (201, 1283360), (208, 1240170), (240, 1074814), (260, 992136), (268, 962520), (312, 826780), (335, 770016), (390, 661424), (402, 641680), (416, 620085), (480, 537407), (520, 496068), (536, 481260), (617, 418080), (624, 413390), (670, 385008), (780, 330712), (804, 320840), (871, 296160), (1005, 256672), (1040, 248034), (1072, 240630), (1234, 209040), (1248, 206695), (1340, 192504), (1560, 165356), (1608, 160420), (1742, 148080), (1851, 139360), (2010, 128336), (2080, 124017), (2144, 120315), (2468, 104520), (2613, 98720), (2680, 96252), (3085, 83616), (3120, 82678), (3216, 80210), (3484, 74040), (3702, 69680), (4020, 64168), (4355, 59232), (4936, 52260), (5226, 49360), (5360, 48126), (6170, 41808), (6240, 41339), (6432, 40105), (6968, 37020), (7404, 34840), (8021, 32160), (8040, 32084), (8710, 29616), (9255, 27872), (9872, 26130), (10452, 24680), (10720, 24063), (12340, 20904), (13065, 19744), (13936, 18510), (14808, 17420), (16042, 16080)]