240718720

素因数分解:

$2^7\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1103}}^1$

素因数の和:1164

約数の個数: 128

約数和(自身を含む): 648622080

約数和(自身を除く): 407903360

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 31, 32, 40, 44, 55, 62, 64, 80, 88, 110, 124, 128, 155, 160, 176, 220, 248, 310, 320, 341, 352, 440, 496, 620, 640, 682, 704, 880, 992, 1103, 1240, 1364, 1408, 1705, 1760, 1984, 2206, 2480, 2728, 3410, 3520, 3968, 4412, 4960, 5456, 5515, 6820, 7040, 8824, 9920, 10912, 11030, 12133, 13640, 17648, 19840, 21824, 22060, 24266, 27280, 34193, 35296, 43648, 44120, 48532, 54560, 60665, 68386, 70592, 88240, 97064, 109120, 121330, 136772, 141184, 170965, 176480, 194128, 218240, 242660, 273544, 341930, 352960, 376123, 388256, 485320, 547088, 683860, 705920, 752246, 776512, 970640, 1094176, 1367720, 1504492, 1553024, 1880615, 1941280, 2188352, 2735440, 3008984, 3761230, 3882560, 4376704, 5470880, 6017968, 7522460, 7765120, 10941760, 12035936, 15044920, 21883520, 24071872, 30089840, 48143744, 60179680, 120359360, 240718720]

約数ペア:

[(1, 240718720), (2, 120359360), (4, 60179680), (5, 48143744), (8, 30089840), (10, 24071872), (11, 21883520), (16, 15044920), (20, 12035936), (22, 10941760), (31, 7765120), (32, 7522460), (40, 6017968), (44, 5470880), (55, 4376704), (62, 3882560), (64, 3761230), (80, 3008984), (88, 2735440), (110, 2188352), (124, 1941280), (128, 1880615), (155, 1553024), (160, 1504492), (176, 1367720), (220, 1094176), (248, 970640), (310, 776512), (320, 752246), (341, 705920), (352, 683860), (440, 547088), (496, 485320), (620, 388256), (640, 376123), (682, 352960), (704, 341930), (880, 273544), (992, 242660), (1103, 218240), (1240, 194128), (1364, 176480), (1408, 170965), (1705, 141184), (1760, 136772), (1984, 121330), (2206, 109120), (2480, 97064), (2728, 88240), (3410, 70592), (3520, 68386), (3968, 60665), (4412, 54560), (4960, 48532), (5456, 44120), (5515, 43648), (6820, 35296), (7040, 34193), (8824, 27280), (9920, 24266), (10912, 22060), (11030, 21824), (12133, 19840), (13640, 17648)]