256941360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{283}}^1$

素因数の和:412

約数の個数: 240

約数和(自身を含む): 942168864

約数和(自身を除く): 685227504

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 30, 36, 39, 40, 45, 48, 52, 60, 65, 72, 78, 80, 90, 97, 104, 117, 120, 130, 144, 156, 180, 194, 195, 208, 234, 240, 260, 283, 291, 312, 360, 388, 390, 468, 485, 520, 566, 582, 585, 624, 720, 776, 780, 849, 873, 936, 970, 1040, 1132, 1164, 1170, 1261, 1415, 1455, 1552, 1560, 1698, 1746, 1872, 1940, 2264, 2328, 2340, 2522, 2547, 2830, 2910, 3120, 3396, 3492, 3679, 3783, 3880, 4245, 4365, 4528, 4656, 4680, 5044, 5094, 5660, 5820, 6305, 6792, 6984, 7358, 7566, 7760, 8490, 8730, 9360, 10088, 10188, 11037, 11320, 11349, 11640, 12610, 12735, 13584, 13968, 14716, 15132, 16980, 17460, 18395, 18915, 20176, 20376, 22074, 22640, 22698, 23280, 25220, 25470, 27451, 29432, 30264, 33111, 33960, 34920, 36790, 37830, 40752, 44148, 45396, 50440, 50940, 54902, 55185, 56745, 58864, 60528, 66222, 67920, 69840, 73580, 75660, 82353, 88296, 90792, 100880, 101880, 109804, 110370, 113490, 132444, 137255, 147160, 151320, 164706, 165555, 176592, 181584, 203760, 219608, 220740, 226980, 247059, 264888, 274510, 294320, 302640, 329412, 331110, 356863, 411765, 439216, 441480, 453960, 494118, 529776, 549020, 658824, 662220, 713726, 823530, 882960, 907920, 988236, 1070589, 1098040, 1235295, 1317648, 1324440, 1427452, 1647060, 1784315, 1976472, 2141178, 2196080, 2470590, 2648880, 2854904, 3211767, 3294120, 3568630, 3952944, 4282356, 4941180, 5352945, 5709808, 6423534, 6588240, 7137260, 8564712, 9882360, 10705890, 12847068, 14274520, 16058835, 17129424, 19764720, 21411780, 25694136, 28549040, 32117670, 42823560, 51388272, 64235340, 85647120, 128470680, 256941360]

約数ペア:

[(1, 256941360), (2, 128470680), (3, 85647120), (4, 64235340), (5, 51388272), (6, 42823560), (8, 32117670), (9, 28549040), (10, 25694136), (12, 21411780), (13, 19764720), (15, 17129424), (16, 16058835), (18, 14274520), (20, 12847068), (24, 10705890), (26, 9882360), (30, 8564712), (36, 7137260), (39, 6588240), (40, 6423534), (45, 5709808), (48, 5352945), (52, 4941180), (60, 4282356), (65, 3952944), (72, 3568630), (78, 3294120), (80, 3211767), (90, 2854904), (97, 2648880), (104, 2470590), (117, 2196080), (120, 2141178), (130, 1976472), (144, 1784315), (156, 1647060), (180, 1427452), (194, 1324440), (195, 1317648), (208, 1235295), (234, 1098040), (240, 1070589), (260, 988236), (283, 907920), (291, 882960), (312, 823530), (360, 713726), (388, 662220), (390, 658824), (468, 549020), (485, 529776), (520, 494118), (566, 453960), (582, 441480), (585, 439216), (624, 411765), (720, 356863), (776, 331110), (780, 329412), (849, 302640), (873, 294320), (936, 274510), (970, 264888), (1040, 247059), (1132, 226980), (1164, 220740), (1170, 219608), (1261, 203760), (1415, 181584), (1455, 176592), (1552, 165555), (1560, 164706), (1698, 151320), (1746, 147160), (1872, 137255), (1940, 132444), (2264, 113490), (2328, 110370), (2340, 109804), (2522, 101880), (2547, 100880), (2830, 90792), (2910, 88296), (3120, 82353), (3396, 75660), (3492, 73580), (3679, 69840), (3783, 67920), (3880, 66222), (4245, 60528), (4365, 58864), (4528, 56745), (4656, 55185), (4680, 54902), (5044, 50940), (5094, 50440), (5660, 45396), (5820, 44148), (6305, 40752), (6792, 37830), (6984, 36790), (7358, 34920), (7566, 33960), (7760, 33111), (8490, 30264), (8730, 29432), (9360, 27451), (10088, 25470), (10188, 25220), (11037, 23280), (11320, 22698), (11349, 22640), (11640, 22074), (12610, 20376), (12735, 20176), (13584, 18915), (13968, 18395), (14716, 17460), (15132, 16980)]