81048240

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1237}}^1$

素因数の和:1276

約数の個数: 240

約数和(自身を含む): 335270208

約数和(自身を除く): 254221968

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 24, 26, 28, 30, 35, 36, 39, 40, 42, 45, 48, 52, 56, 60, 63, 65, 70, 72, 78, 80, 84, 90, 91, 104, 105, 112, 117, 120, 126, 130, 140, 144, 156, 168, 180, 182, 195, 208, 210, 234, 240, 252, 260, 273, 280, 312, 315, 336, 360, 364, 390, 420, 455, 468, 504, 520, 546, 560, 585, 624, 630, 720, 728, 780, 819, 840, 910, 936, 1008, 1040, 1092, 1170, 1237, 1260, 1365, 1456, 1560, 1638, 1680, 1820, 1872, 2184, 2340, 2474, 2520, 2730, 3120, 3276, 3640, 3711, 4095, 4368, 4680, 4948, 5040, 5460, 6185, 6552, 7280, 7422, 8190, 8659, 9360, 9896, 10920, 11133, 12370, 13104, 14844, 16081, 16380, 17318, 18555, 19792, 21840, 22266, 24740, 25977, 29688, 32162, 32760, 34636, 37110, 43295, 44532, 48243, 49480, 51954, 55665, 59376, 64324, 65520, 69272, 74220, 77931, 80405, 86590, 89064, 96486, 98960, 103908, 111330, 112567, 128648, 129885, 138544, 144729, 148440, 155862, 160810, 173180, 178128, 192972, 207816, 222660, 225134, 241215, 257296, 259770, 289458, 296880, 311724, 321620, 337701, 346360, 385944, 389655, 415632, 445320, 450268, 482430, 519540, 562835, 578916, 623448, 643240, 675402, 692720, 723645, 771888, 779310, 890640, 900536, 964860, 1013103, 1039080, 1125670, 1157832, 1246896, 1286480, 1350804, 1447290, 1558620, 1688505, 1801072, 1929720, 2026206, 2078160, 2251340, 2315664, 2701608, 2894580, 3117240, 3377010, 3859440, 4052412, 4502680, 5065515, 5403216, 5789160, 6234480, 6754020, 8104824, 9005360, 10131030, 11578320, 13508040, 16209648, 20262060, 27016080, 40524120, 81048240]

約数ペア:

[(1, 81048240), (2, 40524120), (3, 27016080), (4, 20262060), (5, 16209648), (6, 13508040), (7, 11578320), (8, 10131030), (9, 9005360), (10, 8104824), (12, 6754020), (13, 6234480), (14, 5789160), (15, 5403216), (16, 5065515), (18, 4502680), (20, 4052412), (21, 3859440), (24, 3377010), (26, 3117240), (28, 2894580), (30, 2701608), (35, 2315664), (36, 2251340), (39, 2078160), (40, 2026206), (42, 1929720), (45, 1801072), (48, 1688505), (52, 1558620), (56, 1447290), (60, 1350804), (63, 1286480), (65, 1246896), (70, 1157832), (72, 1125670), (78, 1039080), (80, 1013103), (84, 964860), (90, 900536), (91, 890640), (104, 779310), (105, 771888), (112, 723645), (117, 692720), (120, 675402), (126, 643240), (130, 623448), (140, 578916), (144, 562835), (156, 519540), (168, 482430), (180, 450268), (182, 445320), (195, 415632), (208, 389655), (210, 385944), (234, 346360), (240, 337701), (252, 321620), (260, 311724), (273, 296880), (280, 289458), (312, 259770), (315, 257296), (336, 241215), (360, 225134), (364, 222660), (390, 207816), (420, 192972), (455, 178128), (468, 173180), (504, 160810), (520, 155862), (546, 148440), (560, 144729), (585, 138544), (624, 129885), (630, 128648), (720, 112567), (728, 111330), (780, 103908), (819, 98960), (840, 96486), (910, 89064), (936, 86590), (1008, 80405), (1040, 77931), (1092, 74220), (1170, 69272), (1237, 65520), (1260, 64324), (1365, 59376), (1456, 55665), (1560, 51954), (1638, 49480), (1680, 48243), (1820, 44532), (1872, 43295), (2184, 37110), (2340, 34636), (2474, 32760), (2520, 32162), (2730, 29688), (3120, 25977), (3276, 24740), (3640, 22266), (3711, 21840), (4095, 19792), (4368, 18555), (4680, 17318), (4948, 16380), (5040, 16081), (5460, 14844), (6185, 13104), (6552, 12370), (7280, 11133), (7422, 10920), (8190, 9896), (8659, 9360)]