1661697688

素因数分解:

$2^3\times 7^1\times {\mathrm{97}}^1\times {\mathrm{509}}^1\times {\mathrm{601}}^1$

素因数の和:1220

約数の個数: 64

約数和(自身を含む): 3610555200

約数和(自身を除く): 1948857512

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 97, 194, 388, 509, 601, 679, 776, 1018, 1202, 1358, 2036, 2404, 2716, 3563, 4072, 4207, 4808, 5432, 7126, 8414, 14252, 16828, 28504, 33656, 49373, 58297, 98746, 116594, 197492, 233188, 305909, 345611, 394984, 408079, 466376, 611818, 691222, 816158, 1223636, 1382444, 1632316, 2141363, 2447272, 2764888, 3264632, 4282726, 8565452, 17130904, 29673173, 59346346, 118692692, 207712211, 237385384, 415424422, 830848844, 1661697688]

約数ペア:

[(1, 1661697688), (2, 830848844), (4, 415424422), (7, 237385384), (8, 207712211), (14, 118692692), (28, 59346346), (56, 29673173), (97, 17130904), (194, 8565452), (388, 4282726), (509, 3264632), (601, 2764888), (679, 2447272), (776, 2141363), (1018, 1632316), (1202, 1382444), (1358, 1223636), (2036, 816158), (2404, 691222), (2716, 611818), (3563, 466376), (4072, 408079), (4207, 394984), (4808, 345611), (5432, 305909), (7126, 233188), (8414, 197492), (14252, 116594), (16828, 98746), (28504, 58297), (33656, 49373)]