20910870

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{821}}^1$

素因数の和:1117

約数の個数: 48

約数和(自身を含む): 54626832

約数和(自身を除く): 33715962

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 283, 566, 821, 849, 1415, 1642, 1698, 2463, 2547, 2830, 4105, 4245, 4926, 5094, 7389, 8210, 8490, 12315, 12735, 14778, 24630, 25470, 36945, 73890, 232343, 464686, 697029, 1161715, 1394058, 2091087, 2323430, 3485145, 4182174, 6970290, 10455435, 20910870]

約数ペア:

[(1, 20910870), (2, 10455435), (3, 6970290), (5, 4182174), (6, 3485145), (9, 2323430), (10, 2091087), (15, 1394058), (18, 1161715), (30, 697029), (45, 464686), (90, 232343), (283, 73890), (566, 36945), (821, 25470), (849, 24630), (1415, 14778), (1642, 12735), (1698, 12315), (2463, 8490), (2547, 8210), (2830, 7389), (4105, 5094), (4245, 4926)]