21854750

素因数分解:

$2^1\times 5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 44478720

約数和(自身を除く): 22623970

約数列:

[1, 2, 5, 10, 19, 25, 38, 43, 50, 86, 95, 107, 125, 190, 214, 215, 250, 430, 475, 535, 817, 950, 1070, 1075, 1634, 2033, 2150, 2375, 2675, 4066, 4085, 4601, 4750, 5350, 5375, 8170, 9202, 10165, 10750, 13375, 20330, 20425, 23005, 26750, 40850, 46010, 50825, 87419, 101650, 102125, 115025, 174838, 204250, 230050, 254125, 437095, 508250, 575125, 874190, 1150250, 2185475, 4370950, 10927375, 21854750]

約数ペア:

[(1, 21854750), (2, 10927375), (5, 4370950), (10, 2185475), (19, 1150250), (25, 874190), (38, 575125), (43, 508250), (50, 437095), (86, 254125), (95, 230050), (107, 204250), (125, 174838), (190, 115025), (214, 102125), (215, 101650), (250, 87419), (430, 50825), (475, 46010), (535, 40850), (817, 26750), (950, 23005), (1070, 20425), (1075, 20330), (1634, 13375), (2033, 10750), (2150, 10165), (2375, 9202), (2675, 8170), (4066, 5375), (4085, 5350), (4601, 4750)]