1640644984

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{401}}^1\times {\mathrm{2447}}^1$

素因数の和:2884

約数の個数: 64

約数和(自身を含む): 3542745600

約数和(自身を除く): 1902100616

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 401, 418, 802, 836, 1604, 1672, 2447, 3208, 4411, 4894, 7619, 8822, 9788, 15238, 17644, 19576, 26917, 30476, 35288, 46493, 53834, 60952, 83809, 92986, 107668, 167618, 185972, 215336, 335236, 371944, 511423, 670472, 981247, 1022846, 1962494, 2045692, 3924988, 4091384, 7849976, 10793717, 18643693, 21587434, 37287386, 43174868, 74574772, 86349736, 149149544, 205080623, 410161246, 820322492, 1640644984]

約数ペア:

[(1, 1640644984), (2, 820322492), (4, 410161246), (8, 205080623), (11, 149149544), (19, 86349736), (22, 74574772), (38, 43174868), (44, 37287386), (76, 21587434), (88, 18643693), (152, 10793717), (209, 7849976), (401, 4091384), (418, 3924988), (802, 2045692), (836, 1962494), (1604, 1022846), (1672, 981247), (2447, 670472), (3208, 511423), (4411, 371944), (4894, 335236), (7619, 215336), (8822, 185972), (9788, 167618), (15238, 107668), (17644, 92986), (19576, 83809), (26917, 60952), (30476, 53834), (35288, 46493)]