221721920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{103}}^1$

素因数の和:189

約数の個数: 168

約数和(自身を含む): 629546112

約数和(自身を除く): 407824192

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 31, 32, 35, 40, 56, 62, 64, 70, 80, 103, 112, 124, 140, 155, 160, 206, 217, 224, 248, 280, 310, 320, 412, 434, 448, 496, 515, 560, 620, 721, 824, 868, 961, 992, 1030, 1085, 1120, 1240, 1442, 1648, 1736, 1922, 1984, 2060, 2170, 2240, 2480, 2884, 3193, 3296, 3472, 3605, 3844, 4120, 4340, 4805, 4960, 5768, 6386, 6592, 6727, 6944, 7210, 7688, 8240, 8680, 9610, 9920, 11536, 12772, 13454, 13888, 14420, 15376, 15965, 16480, 17360, 19220, 22351, 23072, 25544, 26908, 28840, 30752, 31930, 32960, 33635, 34720, 38440, 44702, 46144, 51088, 53816, 57680, 61504, 63860, 67270, 69440, 76880, 89404, 98983, 102176, 107632, 111755, 115360, 127720, 134540, 153760, 178808, 197966, 204352, 215264, 223510, 230720, 255440, 269080, 307520, 357616, 395932, 430528, 447020, 494915, 510880, 538160, 692881, 715232, 791864, 894040, 989830, 1021760, 1076320, 1385762, 1430464, 1583728, 1788080, 1979660, 2152640, 2771524, 3167456, 3464405, 3576160, 3959320, 5543048, 6334912, 6928810, 7152320, 7918640, 11086096, 13857620, 15837280, 22172192, 27715240, 31674560, 44344384, 55430480, 110860960, 221721920]

約数ペア:

[(1, 221721920), (2, 110860960), (4, 55430480), (5, 44344384), (7, 31674560), (8, 27715240), (10, 22172192), (14, 15837280), (16, 13857620), (20, 11086096), (28, 7918640), (31, 7152320), (32, 6928810), (35, 6334912), (40, 5543048), (56, 3959320), (62, 3576160), (64, 3464405), (70, 3167456), (80, 2771524), (103, 2152640), (112, 1979660), (124, 1788080), (140, 1583728), (155, 1430464), (160, 1385762), (206, 1076320), (217, 1021760), (224, 989830), (248, 894040), (280, 791864), (310, 715232), (320, 692881), (412, 538160), (434, 510880), (448, 494915), (496, 447020), (515, 430528), (560, 395932), (620, 357616), (721, 307520), (824, 269080), (868, 255440), (961, 230720), (992, 223510), (1030, 215264), (1085, 204352), (1120, 197966), (1240, 178808), (1442, 153760), (1648, 134540), (1736, 127720), (1922, 115360), (1984, 111755), (2060, 107632), (2170, 102176), (2240, 98983), (2480, 89404), (2884, 76880), (3193, 69440), (3296, 67270), (3472, 63860), (3605, 61504), (3844, 57680), (4120, 53816), (4340, 51088), (4805, 46144), (4960, 44702), (5768, 38440), (6386, 34720), (6592, 33635), (6727, 32960), (6944, 31930), (7210, 30752), (7688, 28840), (8240, 26908), (8680, 25544), (9610, 23072), (9920, 22351), (11536, 19220), (12772, 17360), (13454, 16480), (13888, 15965), (14420, 15376)]