128631240

素因数分解:

$2^3\times 3^4\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37}}^2$

素因数の和:126

約数の個数: 240

約数和(自身を含む): 459666900

約数和(自身を除く): 331035660

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 27, 29, 30, 36, 37, 40, 45, 54, 58, 60, 72, 74, 81, 87, 90, 108, 111, 116, 120, 135, 145, 148, 162, 174, 180, 185, 216, 222, 232, 261, 270, 290, 296, 324, 333, 348, 360, 370, 405, 435, 444, 522, 540, 555, 580, 648, 666, 696, 740, 783, 810, 870, 888, 999, 1044, 1073, 1080, 1110, 1160, 1305, 1332, 1369, 1480, 1566, 1620, 1665, 1740, 1998, 2088, 2146, 2220, 2349, 2610, 2664, 2738, 2997, 3132, 3219, 3240, 3330, 3480, 3915, 3996, 4107, 4292, 4440, 4698, 4995, 5220, 5365, 5476, 5994, 6264, 6438, 6660, 6845, 7830, 7992, 8214, 8584, 9396, 9657, 9990, 10440, 10730, 10952, 11745, 11988, 12321, 12876, 13320, 13690, 14985, 15660, 16095, 16428, 18792, 19314, 19980, 20535, 21460, 23490, 23976, 24642, 25752, 27380, 28971, 29970, 31320, 32190, 32856, 36963, 38628, 39701, 39960, 41070, 42920, 46980, 48285, 49284, 54760, 57942, 59940, 61605, 64380, 73926, 77256, 79402, 82140, 86913, 93960, 96570, 98568, 110889, 115884, 119103, 119880, 123210, 128760, 144855, 147852, 158804, 164280, 173826, 184815, 193140, 198505, 221778, 231768, 238206, 246420, 289710, 295704, 317608, 347652, 357309, 369630, 386280, 397010, 434565, 443556, 476412, 492840, 554445, 579420, 595515, 695304, 714618, 739260, 794020, 869130, 887112, 952824, 1071927, 1108890, 1158840, 1191030, 1429236, 1478520, 1588040, 1738260, 1786545, 2143854, 2217780, 2382060, 2858472, 3215781, 3476520, 3573090, 4287708, 4435560, 4764120, 5359635, 6431562, 7146180, 8575416, 10719270, 12863124, 14292360, 16078905, 21438540, 25726248, 32157810, 42877080, 64315620, 128631240]

約数ペア:

[(1, 128631240), (2, 64315620), (3, 42877080), (4, 32157810), (5, 25726248), (6, 21438540), (8, 16078905), (9, 14292360), (10, 12863124), (12, 10719270), (15, 8575416), (18, 7146180), (20, 6431562), (24, 5359635), (27, 4764120), (29, 4435560), (30, 4287708), (36, 3573090), (37, 3476520), (40, 3215781), (45, 2858472), (54, 2382060), (58, 2217780), (60, 2143854), (72, 1786545), (74, 1738260), (81, 1588040), (87, 1478520), (90, 1429236), (108, 1191030), (111, 1158840), (116, 1108890), (120, 1071927), (135, 952824), (145, 887112), (148, 869130), (162, 794020), (174, 739260), (180, 714618), (185, 695304), (216, 595515), (222, 579420), (232, 554445), (261, 492840), (270, 476412), (290, 443556), (296, 434565), (324, 397010), (333, 386280), (348, 369630), (360, 357309), (370, 347652), (405, 317608), (435, 295704), (444, 289710), (522, 246420), (540, 238206), (555, 231768), (580, 221778), (648, 198505), (666, 193140), (696, 184815), (740, 173826), (783, 164280), (810, 158804), (870, 147852), (888, 144855), (999, 128760), (1044, 123210), (1073, 119880), (1080, 119103), (1110, 115884), (1160, 110889), (1305, 98568), (1332, 96570), (1369, 93960), (1480, 86913), (1566, 82140), (1620, 79402), (1665, 77256), (1740, 73926), (1998, 64380), (2088, 61605), (2146, 59940), (2220, 57942), (2349, 54760), (2610, 49284), (2664, 48285), (2738, 46980), (2997, 42920), (3132, 41070), (3219, 39960), (3240, 39701), (3330, 38628), (3480, 36963), (3915, 32856), (3996, 32190), (4107, 31320), (4292, 29970), (4440, 28971), (4698, 27380), (4995, 25752), (5220, 24642), (5365, 23976), (5476, 23490), (5994, 21460), (6264, 20535), (6438, 19980), (6660, 19314), (6845, 18792), (7830, 16428), (7992, 16095), (8214, 15660), (8584, 14985), (9396, 13690), (9657, 13320), (9990, 12876), (10440, 12321), (10730, 11988), (10952, 11745)]