20435399764

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{21523}}^1$

素因数の和:21621

約数の個数: 72

約数和(自身を含む): 41891730720

約数和(自身を除く): 21456330956

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 806, 961, 988, 1178, 1612, 1922, 2356, 3844, 7657, 12493, 15314, 18259, 21523, 24986, 30628, 36518, 43046, 49972, 73036, 86092, 237367, 279799, 408937, 474734, 559598, 667213, 817874, 949468, 1119196, 1334426, 1635748, 2668852, 5316181, 8673769, 10632362, 12677047, 17347538, 20683603, 21264724, 25354094, 34695076, 41367206, 50708188, 82734412, 164801611, 268886839, 329603222, 392988457, 537773678, 659206444, 785976914, 1075547356, 1571953828, 5108849941, 10217699882, 20435399764]

約数ペア:

[(1, 20435399764), (2, 10217699882), (4, 5108849941), (13, 1571953828), (19, 1075547356), (26, 785976914), (31, 659206444), (38, 537773678), (52, 392988457), (62, 329603222), (76, 268886839), (124, 164801611), (247, 82734412), (403, 50708188), (494, 41367206), (589, 34695076), (806, 25354094), (961, 21264724), (988, 20683603), (1178, 17347538), (1612, 12677047), (1922, 10632362), (2356, 8673769), (3844, 5316181), (7657, 2668852), (12493, 1635748), (15314, 1334426), (18259, 1119196), (21523, 949468), (24986, 817874), (30628, 667213), (36518, 559598), (43046, 474734), (49972, 408937), (73036, 279799), (86092, 237367)]