20783048

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{491}}^1$

素因数の和:558

約数の個数: 64

約数和(自身を含む): 47113920

約数和(自身を除く): 26330872

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 37, 44, 52, 74, 88, 104, 143, 148, 286, 296, 407, 481, 491, 572, 814, 962, 982, 1144, 1628, 1924, 1964, 3256, 3848, 3928, 5291, 5401, 6383, 10582, 10802, 12766, 18167, 21164, 21604, 25532, 36334, 42328, 43208, 51064, 70213, 72668, 140426, 145336, 199837, 236171, 280852, 399674, 472342, 561704, 799348, 944684, 1598696, 1889368, 2597881, 5195762, 10391524, 20783048]

約数ペア:

[(1, 20783048), (2, 10391524), (4, 5195762), (8, 2597881), (11, 1889368), (13, 1598696), (22, 944684), (26, 799348), (37, 561704), (44, 472342), (52, 399674), (74, 280852), (88, 236171), (104, 199837), (143, 145336), (148, 140426), (286, 72668), (296, 70213), (407, 51064), (481, 43208), (491, 42328), (572, 36334), (814, 25532), (962, 21604), (982, 21164), (1144, 18167), (1628, 12766), (1924, 10802), (1964, 10582), (3256, 6383), (3848, 5401), (3928, 5291)]