28516788

素因数分解:

$2^2\times 3^2\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:397

約数の個数: 72

約数和(自身を含む): 75246080

約数和(自身を除く): 46729292

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 37, 74, 79, 111, 148, 158, 222, 237, 271, 316, 333, 444, 474, 542, 666, 711, 813, 948, 1084, 1332, 1422, 1626, 2439, 2844, 2923, 3252, 4878, 5846, 8769, 9756, 10027, 11692, 17538, 20054, 21409, 26307, 30081, 35076, 40108, 42818, 52614, 60162, 64227, 85636, 90243, 105228, 120324, 128454, 180486, 192681, 256908, 360972, 385362, 770724, 792133, 1584266, 2376399, 3168532, 4752798, 7129197, 9505596, 14258394, 28516788]

約数ペア:

[(1, 28516788), (2, 14258394), (3, 9505596), (4, 7129197), (6, 4752798), (9, 3168532), (12, 2376399), (18, 1584266), (36, 792133), (37, 770724), (74, 385362), (79, 360972), (111, 256908), (148, 192681), (158, 180486), (222, 128454), (237, 120324), (271, 105228), (316, 90243), (333, 85636), (444, 64227), (474, 60162), (542, 52614), (666, 42818), (711, 40108), (813, 35076), (948, 30081), (1084, 26307), (1332, 21409), (1422, 20054), (1626, 17538), (2439, 11692), (2844, 10027), (2923, 9756), (3252, 8769), (4878, 5846)]