20281140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{10243}}^1$

素因数の和:10269

約数の個数: 72

約数和(自身を含む): 67118688

約数和(自身を除く): 46837548

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 30, 33, 36, 44, 45, 55, 60, 66, 90, 99, 110, 132, 165, 180, 198, 220, 330, 396, 495, 660, 990, 1980, 10243, 20486, 30729, 40972, 51215, 61458, 92187, 102430, 112673, 122916, 153645, 184374, 204860, 225346, 307290, 338019, 368748, 450692, 460935, 563365, 614580, 676038, 921870, 1014057, 1126730, 1352076, 1690095, 1843740, 2028114, 2253460, 3380190, 4056228, 5070285, 6760380, 10140570, 20281140]

約数ペア:

[(1, 20281140), (2, 10140570), (3, 6760380), (4, 5070285), (5, 4056228), (6, 3380190), (9, 2253460), (10, 2028114), (11, 1843740), (12, 1690095), (15, 1352076), (18, 1126730), (20, 1014057), (22, 921870), (30, 676038), (33, 614580), (36, 563365), (44, 460935), (45, 450692), (55, 368748), (60, 338019), (66, 307290), (90, 225346), (99, 204860), (110, 184374), (132, 153645), (165, 122916), (180, 112673), (198, 102430), (220, 92187), (330, 61458), (396, 51215), (495, 40972), (660, 30729), (990, 20486), (1980, 10243)]