181390720

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2131}}^1$

素因数の和:2176

約数の個数: 128

約数和(自身を含む): 521913600

約数和(自身を除く): 340522880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 1064, 1120, 1216, 1330, 1520, 2128, 2131, 2240, 2432, 2660, 3040, 4256, 4262, 4480, 5320, 6080, 8512, 8524, 10640, 10655, 12160, 14917, 17024, 17048, 21280, 21310, 29834, 34096, 40489, 42560, 42620, 59668, 68192, 74585, 80978, 85120, 85240, 119336, 136384, 149170, 161956, 170480, 202445, 238672, 272768, 283423, 298340, 323912, 340960, 404890, 477344, 566846, 596680, 647824, 681920, 809780, 954688, 1133692, 1193360, 1295648, 1363840, 1417115, 1619560, 1909376, 2267384, 2386720, 2591296, 2834230, 3239120, 4534768, 4773440, 5182592, 5668460, 6478240, 9069536, 9546880, 11336920, 12956480, 18139072, 22673840, 25912960, 36278144, 45347680, 90695360, 181390720]

約数ペア:

[(1, 181390720), (2, 90695360), (4, 45347680), (5, 36278144), (7, 25912960), (8, 22673840), (10, 18139072), (14, 12956480), (16, 11336920), (19, 9546880), (20, 9069536), (28, 6478240), (32, 5668460), (35, 5182592), (38, 4773440), (40, 4534768), (56, 3239120), (64, 2834230), (70, 2591296), (76, 2386720), (80, 2267384), (95, 1909376), (112, 1619560), (128, 1417115), (133, 1363840), (140, 1295648), (152, 1193360), (160, 1133692), (190, 954688), (224, 809780), (266, 681920), (280, 647824), (304, 596680), (320, 566846), (380, 477344), (448, 404890), (532, 340960), (560, 323912), (608, 298340), (640, 283423), (665, 272768), (760, 238672), (896, 202445), (1064, 170480), (1120, 161956), (1216, 149170), (1330, 136384), (1520, 119336), (2128, 85240), (2131, 85120), (2240, 80978), (2432, 74585), (2660, 68192), (3040, 59668), (4256, 42620), (4262, 42560), (4480, 40489), (5320, 34096), (6080, 29834), (8512, 21310), (8524, 21280), (10640, 17048), (10655, 17024), (12160, 14917)]