1640803900

素因数分解:

$2^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37547}}^1$

素因数の和:37603

約数の個数: 72

約数和(自身を含む): 3910999680

約数和(自身を除く): 2270195780

約数列:

[1, 2, 4, 5, 10, 19, 20, 23, 25, 38, 46, 50, 76, 92, 95, 100, 115, 190, 230, 380, 437, 460, 475, 575, 874, 950, 1150, 1748, 1900, 2185, 2300, 4370, 8740, 10925, 21850, 37547, 43700, 75094, 150188, 187735, 375470, 713393, 750940, 863581, 938675, 1426786, 1727162, 1877350, 2853572, 3454324, 3566965, 3754700, 4317905, 7133930, 8635810, 14267860, 16408039, 17271620, 17834825, 21589525, 32816078, 35669650, 43179050, 65632156, 71339300, 82040195, 86358100, 164080390, 328160780, 410200975, 820401950, 1640803900]

約数ペア:

[(1, 1640803900), (2, 820401950), (4, 410200975), (5, 328160780), (10, 164080390), (19, 86358100), (20, 82040195), (23, 71339300), (25, 65632156), (38, 43179050), (46, 35669650), (50, 32816078), (76, 21589525), (92, 17834825), (95, 17271620), (100, 16408039), (115, 14267860), (190, 8635810), (230, 7133930), (380, 4317905), (437, 3754700), (460, 3566965), (475, 3454324), (575, 2853572), (874, 1877350), (950, 1727162), (1150, 1426786), (1748, 938675), (1900, 863581), (2185, 750940), (2300, 713393), (4370, 375470), (8740, 187735), (10925, 150188), (21850, 75094), (37547, 43700)]