20569450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{251}}^1$

素因数の和:423

約数の個数: 48

約数和(自身を含む): 42184800

約数和(自身を除く): 21615350

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 149, 251, 275, 298, 502, 550, 745, 1255, 1490, 1639, 2510, 2761, 3278, 3725, 5522, 6275, 7450, 8195, 12550, 13805, 16390, 27610, 37399, 40975, 69025, 74798, 81950, 138050, 186995, 373990, 411389, 822778, 934975, 1869950, 2056945, 4113890, 10284725, 20569450]

約数ペア:

[(1, 20569450), (2, 10284725), (5, 4113890), (10, 2056945), (11, 1869950), (22, 934975), (25, 822778), (50, 411389), (55, 373990), (110, 186995), (149, 138050), (251, 81950), (275, 74798), (298, 69025), (502, 40975), (550, 37399), (745, 27610), (1255, 16390), (1490, 13805), (1639, 12550), (2510, 8195), (2761, 7450), (3278, 6275), (3725, 5522)]