123781840

素因数分解:

$2^4\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{347}}^1$

素因数の和:394

約数の個数: 160

約数和(自身を含む): 362476800

約数和(自身を除く): 238694960

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 35, 40, 49, 52, 56, 65, 70, 80, 91, 98, 104, 112, 130, 140, 182, 196, 208, 245, 260, 280, 343, 347, 364, 392, 455, 490, 520, 560, 637, 686, 694, 728, 784, 910, 980, 1040, 1274, 1372, 1388, 1456, 1715, 1735, 1820, 1960, 2429, 2548, 2744, 2776, 3185, 3430, 3470, 3640, 3920, 4459, 4511, 4858, 5096, 5488, 5552, 6370, 6860, 6940, 7280, 8918, 9022, 9716, 10192, 12145, 12740, 13720, 13880, 17003, 17836, 18044, 19432, 22295, 22555, 24290, 25480, 27440, 27760, 31577, 34006, 35672, 36088, 38864, 44590, 45110, 48580, 50960, 63154, 68012, 71344, 72176, 85015, 89180, 90220, 97160, 119021, 126308, 136024, 157885, 170030, 178360, 180440, 194320, 221039, 238042, 252616, 272048, 315770, 340060, 356720, 360880, 442078, 476084, 505232, 595105, 631540, 680120, 884156, 952168, 1105195, 1190210, 1263080, 1360240, 1547273, 1768312, 1904336, 2210390, 2380420, 2526160, 3094546, 3536624, 4420780, 4760840, 6189092, 7736365, 8841560, 9521680, 12378184, 15472730, 17683120, 24756368, 30945460, 61890920, 123781840]

約数ペア:

[(1, 123781840), (2, 61890920), (4, 30945460), (5, 24756368), (7, 17683120), (8, 15472730), (10, 12378184), (13, 9521680), (14, 8841560), (16, 7736365), (20, 6189092), (26, 4760840), (28, 4420780), (35, 3536624), (40, 3094546), (49, 2526160), (52, 2380420), (56, 2210390), (65, 1904336), (70, 1768312), (80, 1547273), (91, 1360240), (98, 1263080), (104, 1190210), (112, 1105195), (130, 952168), (140, 884156), (182, 680120), (196, 631540), (208, 595105), (245, 505232), (260, 476084), (280, 442078), (343, 360880), (347, 356720), (364, 340060), (392, 315770), (455, 272048), (490, 252616), (520, 238042), (560, 221039), (637, 194320), (686, 180440), (694, 178360), (728, 170030), (784, 157885), (910, 136024), (980, 126308), (1040, 119021), (1274, 97160), (1372, 90220), (1388, 89180), (1456, 85015), (1715, 72176), (1735, 71344), (1820, 68012), (1960, 63154), (2429, 50960), (2548, 48580), (2744, 45110), (2776, 44590), (3185, 38864), (3430, 36088), (3470, 35672), (3640, 34006), (3920, 31577), (4459, 27760), (4511, 27440), (4858, 25480), (5096, 24290), (5488, 22555), (5552, 22295), (6370, 19432), (6860, 18044), (6940, 17836), (7280, 17003), (8918, 13880), (9022, 13720), (9716, 12740), (10192, 12145)]