19993320

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1$

素因数の和:152

約数の個数: 192

約数和(自身を含む): 71136000

約数和(自身を除く): 51142680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 37, 38, 40, 45, 57, 60, 72, 74, 76, 79, 90, 95, 111, 114, 120, 148, 152, 158, 171, 180, 185, 190, 222, 228, 237, 285, 296, 316, 333, 342, 360, 370, 380, 395, 444, 456, 474, 555, 570, 632, 666, 684, 703, 711, 740, 760, 790, 855, 888, 948, 1110, 1140, 1185, 1332, 1368, 1406, 1422, 1480, 1501, 1580, 1665, 1710, 1896, 2109, 2220, 2280, 2370, 2664, 2812, 2844, 2923, 3002, 3160, 3330, 3420, 3515, 3555, 4218, 4440, 4503, 4740, 5624, 5688, 5846, 6004, 6327, 6660, 6840, 7030, 7110, 7505, 8436, 8769, 9006, 9480, 10545, 11692, 12008, 12654, 13320, 13509, 14060, 14220, 14615, 15010, 16872, 17538, 18012, 21090, 22515, 23384, 25308, 26307, 27018, 28120, 28440, 29230, 30020, 31635, 35076, 36024, 42180, 43845, 45030, 50616, 52614, 54036, 55537, 58460, 60040, 63270, 67545, 70152, 84360, 87690, 90060, 105228, 108072, 111074, 116920, 126540, 131535, 135090, 166611, 175380, 180120, 210456, 222148, 253080, 263070, 270180, 277685, 333222, 350760, 444296, 499833, 526140, 540360, 555370, 666444, 833055, 999666, 1052280, 1110740, 1332888, 1666110, 1999332, 2221480, 2499165, 3332220, 3998664, 4998330, 6664440, 9996660, 19993320]

約数ペア:

[(1, 19993320), (2, 9996660), (3, 6664440), (4, 4998330), (5, 3998664), (6, 3332220), (8, 2499165), (9, 2221480), (10, 1999332), (12, 1666110), (15, 1332888), (18, 1110740), (19, 1052280), (20, 999666), (24, 833055), (30, 666444), (36, 555370), (37, 540360), (38, 526140), (40, 499833), (45, 444296), (57, 350760), (60, 333222), (72, 277685), (74, 270180), (76, 263070), (79, 253080), (90, 222148), (95, 210456), (111, 180120), (114, 175380), (120, 166611), (148, 135090), (152, 131535), (158, 126540), (171, 116920), (180, 111074), (185, 108072), (190, 105228), (222, 90060), (228, 87690), (237, 84360), (285, 70152), (296, 67545), (316, 63270), (333, 60040), (342, 58460), (360, 55537), (370, 54036), (380, 52614), (395, 50616), (444, 45030), (456, 43845), (474, 42180), (555, 36024), (570, 35076), (632, 31635), (666, 30020), (684, 29230), (703, 28440), (711, 28120), (740, 27018), (760, 26307), (790, 25308), (855, 23384), (888, 22515), (948, 21090), (1110, 18012), (1140, 17538), (1185, 16872), (1332, 15010), (1368, 14615), (1406, 14220), (1422, 14060), (1480, 13509), (1501, 13320), (1580, 12654), (1665, 12008), (1710, 11692), (1896, 10545), (2109, 9480), (2220, 9006), (2280, 8769), (2370, 8436), (2664, 7505), (2812, 7110), (2844, 7030), (2923, 6840), (3002, 6660), (3160, 6327), (3330, 6004), (3420, 5846), (3515, 5688), (3555, 5624), (4218, 4740), (4440, 4503)]