81969990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{143807}}^1$

素因数の和:143836

約数の個数: 32

約数和(自身を含む): 207083520

約数和(自身を除く): 125113530

約数列:

[1, 2, 3, 5, 6, 10, 15, 19, 30, 38, 57, 95, 114, 190, 285, 570, 143807, 287614, 431421, 719035, 862842, 1438070, 2157105, 2732333, 4314210, 5464666, 8196999, 13661665, 16393998, 27323330, 40984995, 81969990]

約数ペア:

[(1, 81969990), (2, 40984995), (3, 27323330), (5, 16393998), (6, 13661665), (10, 8196999), (15, 5464666), (19, 4314210), (30, 2732333), (38, 2157105), (57, 1438070), (95, 862842), (114, 719035), (190, 431421), (285, 287614), (570, 143807)]