18396560

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2$

素因数の和:78

約数の個数: 180

約数和(自身を含む): 56551068

約数和(自身を除く): 38154508

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 19, 20, 26, 28, 35, 38, 40, 49, 52, 56, 65, 70, 76, 80, 91, 95, 98, 104, 112, 130, 133, 140, 152, 182, 190, 196, 208, 245, 247, 260, 266, 280, 304, 361, 364, 380, 392, 455, 490, 494, 520, 532, 560, 637, 665, 722, 728, 760, 784, 910, 931, 980, 988, 1040, 1064, 1235, 1274, 1330, 1444, 1456, 1520, 1729, 1805, 1820, 1862, 1960, 1976, 2128, 2470, 2527, 2548, 2660, 2888, 3185, 3458, 3610, 3640, 3724, 3920, 3952, 4655, 4693, 4940, 5054, 5096, 5320, 5776, 6370, 6916, 7220, 7280, 7448, 8645, 9310, 9386, 9880, 10108, 10192, 10640, 12103, 12635, 12740, 13832, 14440, 14896, 17290, 17689, 18620, 18772, 19760, 20216, 23465, 24206, 25270, 25480, 27664, 28880, 32851, 34580, 35378, 37240, 37544, 40432, 46930, 48412, 50540, 50960, 60515, 65702, 69160, 70756, 74480, 75088, 88445, 93860, 96824, 101080, 121030, 131404, 138320, 141512, 164255, 176890, 187720, 193648, 202160, 229957, 242060, 262808, 283024, 328510, 353780, 375440, 459914, 484120, 525616, 657020, 707560, 919828, 968240, 1149785, 1314040, 1415120, 1839656, 2299570, 2628080, 3679312, 4599140, 9198280, 18396560]

約数ペア:

[(1, 18396560), (2, 9198280), (4, 4599140), (5, 3679312), (7, 2628080), (8, 2299570), (10, 1839656), (13, 1415120), (14, 1314040), (16, 1149785), (19, 968240), (20, 919828), (26, 707560), (28, 657020), (35, 525616), (38, 484120), (40, 459914), (49, 375440), (52, 353780), (56, 328510), (65, 283024), (70, 262808), (76, 242060), (80, 229957), (91, 202160), (95, 193648), (98, 187720), (104, 176890), (112, 164255), (130, 141512), (133, 138320), (140, 131404), (152, 121030), (182, 101080), (190, 96824), (196, 93860), (208, 88445), (245, 75088), (247, 74480), (260, 70756), (266, 69160), (280, 65702), (304, 60515), (361, 50960), (364, 50540), (380, 48412), (392, 46930), (455, 40432), (490, 37544), (494, 37240), (520, 35378), (532, 34580), (560, 32851), (637, 28880), (665, 27664), (722, 25480), (728, 25270), (760, 24206), (784, 23465), (910, 20216), (931, 19760), (980, 18772), (988, 18620), (1040, 17689), (1064, 17290), (1235, 14896), (1274, 14440), (1330, 13832), (1444, 12740), (1456, 12635), (1520, 12103), (1729, 10640), (1805, 10192), (1820, 10108), (1862, 9880), (1960, 9386), (1976, 9310), (2128, 8645), (2470, 7448), (2527, 7280), (2548, 7220), (2660, 6916), (2888, 6370), (3185, 5776), (3458, 5320), (3610, 5096), (3640, 5054), (3724, 4940), (3920, 4693), (3952, 4655)]