72129928

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1$

素因数の和:422

約数の個数: 64

約数和(自身を含む): 154929600

約数和(自身を除く): 82799672

約数列:

[1, 2, 4, 8, 13, 19, 26, 38, 52, 76, 104, 152, 173, 211, 247, 346, 422, 494, 692, 844, 988, 1384, 1688, 1976, 2249, 2743, 3287, 4009, 4498, 5486, 6574, 8018, 8996, 10972, 13148, 16036, 17992, 21944, 26296, 32072, 36503, 42731, 52117, 73006, 85462, 104234, 146012, 170924, 208468, 292024, 341848, 416936, 474539, 693557, 949078, 1387114, 1898156, 2774228, 3796312, 5548456, 9016241, 18032482, 36064964, 72129928]

約数ペア:

[(1, 72129928), (2, 36064964), (4, 18032482), (8, 9016241), (13, 5548456), (19, 3796312), (26, 2774228), (38, 1898156), (52, 1387114), (76, 949078), (104, 693557), (152, 474539), (173, 416936), (211, 341848), (247, 292024), (346, 208468), (422, 170924), (494, 146012), (692, 104234), (844, 85462), (988, 73006), (1384, 52117), (1688, 42731), (1976, 36503), (2249, 32072), (2743, 26296), (3287, 21944), (4009, 17992), (4498, 16036), (5486, 13148), (6574, 10972), (8018, 8996)]