38997500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{821}}^1$

素因数の和:864

約数の個数: 60

約数和(自身を含む): 89877480

約数和(自身を除く): 50879980

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 95, 100, 125, 190, 250, 380, 475, 500, 625, 821, 950, 1250, 1642, 1900, 2375, 2500, 3284, 4105, 4750, 8210, 9500, 11875, 15599, 16420, 20525, 23750, 31198, 41050, 47500, 62396, 77995, 82100, 102625, 155990, 205250, 311980, 389975, 410500, 513125, 779950, 1026250, 1559900, 1949875, 2052500, 3899750, 7799500, 9749375, 19498750, 38997500]

約数ペア:

[(1, 38997500), (2, 19498750), (4, 9749375), (5, 7799500), (10, 3899750), (19, 2052500), (20, 1949875), (25, 1559900), (38, 1026250), (50, 779950), (76, 513125), (95, 410500), (100, 389975), (125, 311980), (190, 205250), (250, 155990), (380, 102625), (475, 82100), (500, 77995), (625, 62396), (821, 47500), (950, 41050), (1250, 31198), (1642, 23750), (1900, 20525), (2375, 16420), (2500, 15599), (3284, 11875), (4105, 9500), (4750, 8210)]