661824688

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{1237}}^1$

素因数の和:1550

約数の個数: 80

約数和(自身を含む): 1558453824

約数和(自身を除く): 896629136

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 281, 476, 562, 952, 1124, 1237, 1904, 1967, 2248, 2474, 3934, 4496, 4777, 4948, 7868, 8659, 9554, 9896, 15736, 17318, 19108, 19792, 21029, 31472, 33439, 34636, 38216, 42058, 66878, 69272, 76432, 84116, 133756, 138544, 147203, 168232, 267512, 294406, 336464, 347597, 535024, 588812, 695194, 1177624, 1390388, 2355248, 2433179, 2780776, 4866358, 5561552, 5909149, 9732716, 11818298, 19465432, 23636596, 38930864, 41364043, 47273192, 82728086, 94546384, 165456172, 330912344, 661824688]

約数ペア:

[(1, 661824688), (2, 330912344), (4, 165456172), (7, 94546384), (8, 82728086), (14, 47273192), (16, 41364043), (17, 38930864), (28, 23636596), (34, 19465432), (56, 11818298), (68, 9732716), (112, 5909149), (119, 5561552), (136, 4866358), (238, 2780776), (272, 2433179), (281, 2355248), (476, 1390388), (562, 1177624), (952, 695194), (1124, 588812), (1237, 535024), (1904, 347597), (1967, 336464), (2248, 294406), (2474, 267512), (3934, 168232), (4496, 147203), (4777, 138544), (4948, 133756), (7868, 84116), (8659, 76432), (9554, 69272), (9896, 66878), (15736, 42058), (17318, 38216), (19108, 34636), (19792, 33439), (21029, 31472)]