256183840

素因数分解:

$2^5\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1$

素因数の和:255

約数の個数: 192

約数和(自身を含む): 714147840

約数和(自身を除く): 457964000

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 19, 20, 22, 32, 38, 40, 44, 47, 55, 76, 80, 88, 94, 95, 110, 152, 160, 163, 176, 188, 190, 209, 220, 235, 304, 326, 352, 376, 380, 418, 440, 470, 517, 608, 652, 752, 760, 815, 836, 880, 893, 940, 1034, 1045, 1304, 1504, 1520, 1630, 1672, 1760, 1786, 1793, 1880, 2068, 2090, 2585, 2608, 3040, 3097, 3260, 3344, 3572, 3586, 3760, 4136, 4180, 4465, 5170, 5216, 6194, 6520, 6688, 7144, 7172, 7520, 7661, 8272, 8360, 8930, 8965, 9823, 10340, 12388, 13040, 14288, 14344, 15322, 15485, 16544, 16720, 17860, 17930, 19646, 20680, 24776, 26080, 28576, 28688, 30644, 30970, 33440, 34067, 35720, 35860, 38305, 39292, 41360, 49115, 49552, 57376, 61288, 61940, 68134, 71440, 71720, 76610, 78584, 82720, 84271, 98230, 99104, 122576, 123880, 136268, 142880, 143440, 145559, 153220, 157168, 168542, 170335, 196460, 245152, 247760, 272536, 286880, 291118, 306440, 314336, 337084, 340670, 392920, 421355, 495520, 545072, 582236, 612880, 674168, 681340, 727795, 785840, 842710, 1090144, 1164472, 1225760, 1348336, 1362680, 1455590, 1571680, 1601149, 1685420, 2328944, 2696672, 2725360, 2911180, 3202298, 3370840, 4657888, 5450720, 5822360, 6404596, 6741680, 8005745, 11644720, 12809192, 13483360, 16011490, 23289440, 25618384, 32022980, 51236768, 64045960, 128091920, 256183840]

約数ペア:

[(1, 256183840), (2, 128091920), (4, 64045960), (5, 51236768), (8, 32022980), (10, 25618384), (11, 23289440), (16, 16011490), (19, 13483360), (20, 12809192), (22, 11644720), (32, 8005745), (38, 6741680), (40, 6404596), (44, 5822360), (47, 5450720), (55, 4657888), (76, 3370840), (80, 3202298), (88, 2911180), (94, 2725360), (95, 2696672), (110, 2328944), (152, 1685420), (160, 1601149), (163, 1571680), (176, 1455590), (188, 1362680), (190, 1348336), (209, 1225760), (220, 1164472), (235, 1090144), (304, 842710), (326, 785840), (352, 727795), (376, 681340), (380, 674168), (418, 612880), (440, 582236), (470, 545072), (517, 495520), (608, 421355), (652, 392920), (752, 340670), (760, 337084), (815, 314336), (836, 306440), (880, 291118), (893, 286880), (940, 272536), (1034, 247760), (1045, 245152), (1304, 196460), (1504, 170335), (1520, 168542), (1630, 157168), (1672, 153220), (1760, 145559), (1786, 143440), (1793, 142880), (1880, 136268), (2068, 123880), (2090, 122576), (2585, 99104), (2608, 98230), (3040, 84271), (3097, 82720), (3260, 78584), (3344, 76610), (3572, 71720), (3586, 71440), (3760, 68134), (4136, 61940), (4180, 61288), (4465, 57376), (5170, 49552), (5216, 49115), (6194, 41360), (6520, 39292), (6688, 38305), (7144, 35860), (7172, 35720), (7520, 34067), (7661, 33440), (8272, 30970), (8360, 30644), (8930, 28688), (8965, 28576), (9823, 26080), (10340, 24776), (12388, 20680), (13040, 19646), (14288, 17930), (14344, 17860), (15322, 16720), (15485, 16544)]