19880250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{13}}^1\times {\mathrm{2039}}^1$

素因数の和:2072

約数の個数: 64

約数和(自身を含む): 53464320

約数和(自身を除く): 33584070

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 25, 26, 30, 39, 50, 65, 75, 78, 125, 130, 150, 195, 250, 325, 375, 390, 650, 750, 975, 1625, 1950, 2039, 3250, 4078, 4875, 6117, 9750, 10195, 12234, 20390, 26507, 30585, 50975, 53014, 61170, 79521, 101950, 132535, 152925, 159042, 254875, 265070, 305850, 397605, 509750, 662675, 764625, 795210, 1325350, 1529250, 1988025, 3313375, 3976050, 6626750, 9940125, 19880250]

約数ペア:

[(1, 19880250), (2, 9940125), (3, 6626750), (5, 3976050), (6, 3313375), (10, 1988025), (13, 1529250), (15, 1325350), (25, 795210), (26, 764625), (30, 662675), (39, 509750), (50, 397605), (65, 305850), (75, 265070), (78, 254875), (125, 159042), (130, 152925), (150, 132535), (195, 101950), (250, 79521), (325, 61170), (375, 53014), (390, 50975), (650, 30585), (750, 26507), (975, 20390), (1625, 12234), (1950, 10195), (2039, 9750), (3250, 6117), (4078, 4875)]