1999013408

素因数分解:

$2^5\times 7^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{3947}}^1$

素因数の和:4007

約数の個数: 144

約数和(自身を含む): 5103816480

約数和(自身を除く): 3104803072

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 32, 34, 38, 49, 56, 68, 76, 98, 112, 119, 133, 136, 152, 196, 224, 238, 266, 272, 304, 323, 392, 476, 532, 544, 608, 646, 784, 833, 931, 952, 1064, 1292, 1568, 1666, 1862, 1904, 2128, 2261, 2584, 3332, 3724, 3808, 3947, 4256, 4522, 5168, 6664, 7448, 7894, 9044, 10336, 13328, 14896, 15788, 15827, 18088, 26656, 27629, 29792, 31576, 31654, 36176, 55258, 63152, 63308, 67099, 72352, 74993, 110516, 126304, 126616, 134198, 149986, 193403, 221032, 253232, 268396, 299972, 386806, 442064, 469693, 506464, 524951, 536792, 599944, 773612, 884128, 939386, 1049902, 1073584, 1199888, 1274881, 1547224, 1878772, 2099804, 2147168, 2399776, 2549762, 3094448, 3287851, 3674657, 3757544, 4199608, 5099524, 6188896, 6575702, 7349314, 7515088, 8399216, 8924167, 10199048, 13151404, 14698628, 15030176, 16798432, 17848334, 20398096, 26302808, 29397256, 35696668, 40796192, 52605616, 58794512, 62469169, 71393336, 105211232, 117589024, 124938338, 142786672, 249876676, 285573344, 499753352, 999506704, 1999013408]

約数ペア:

[(1, 1999013408), (2, 999506704), (4, 499753352), (7, 285573344), (8, 249876676), (14, 142786672), (16, 124938338), (17, 117589024), (19, 105211232), (28, 71393336), (32, 62469169), (34, 58794512), (38, 52605616), (49, 40796192), (56, 35696668), (68, 29397256), (76, 26302808), (98, 20398096), (112, 17848334), (119, 16798432), (133, 15030176), (136, 14698628), (152, 13151404), (196, 10199048), (224, 8924167), (238, 8399216), (266, 7515088), (272, 7349314), (304, 6575702), (323, 6188896), (392, 5099524), (476, 4199608), (532, 3757544), (544, 3674657), (608, 3287851), (646, 3094448), (784, 2549762), (833, 2399776), (931, 2147168), (952, 2099804), (1064, 1878772), (1292, 1547224), (1568, 1274881), (1666, 1199888), (1862, 1073584), (1904, 1049902), (2128, 939386), (2261, 884128), (2584, 773612), (3332, 599944), (3724, 536792), (3808, 524951), (3947, 506464), (4256, 469693), (4522, 442064), (5168, 386806), (6664, 299972), (7448, 268396), (7894, 253232), (9044, 221032), (10336, 193403), (13328, 149986), (14896, 134198), (15788, 126616), (15827, 126304), (18088, 110516), (26656, 74993), (27629, 72352), (29792, 67099), (31576, 63308), (31654, 63152), (36176, 55258)]