328899500

素因数分解:

$2^2\times 5^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:516

約数の個数: 96

約数和(自身を含む): 766584000

約数和(自身を除く): 437684500

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 50, 76, 89, 95, 100, 125, 178, 190, 250, 356, 380, 389, 445, 475, 500, 778, 890, 950, 1556, 1691, 1780, 1900, 1945, 2225, 2375, 3382, 3890, 4450, 4750, 6764, 7391, 7780, 8455, 8900, 9500, 9725, 11125, 14782, 16910, 19450, 22250, 29564, 33820, 34621, 36955, 38900, 42275, 44500, 48625, 69242, 73910, 84550, 97250, 138484, 147820, 169100, 173105, 184775, 194500, 211375, 346210, 369550, 422750, 657799, 692420, 739100, 845500, 865525, 923875, 1315598, 1731050, 1847750, 2631196, 3288995, 3462100, 3695500, 4327625, 6577990, 8655250, 13155980, 16444975, 17310500, 32889950, 65779900, 82224875, 164449750, 328899500]

約数ペア:

[(1, 328899500), (2, 164449750), (4, 82224875), (5, 65779900), (10, 32889950), (19, 17310500), (20, 16444975), (25, 13155980), (38, 8655250), (50, 6577990), (76, 4327625), (89, 3695500), (95, 3462100), (100, 3288995), (125, 2631196), (178, 1847750), (190, 1731050), (250, 1315598), (356, 923875), (380, 865525), (389, 845500), (445, 739100), (475, 692420), (500, 657799), (778, 422750), (890, 369550), (950, 346210), (1556, 211375), (1691, 194500), (1780, 184775), (1900, 173105), (1945, 169100), (2225, 147820), (2375, 138484), (3382, 97250), (3890, 84550), (4450, 73910), (4750, 69242), (6764, 48625), (7391, 44500), (7780, 42275), (8455, 38900), (8900, 36955), (9500, 34621), (9725, 33820), (11125, 29564), (14782, 22250), (16910, 19450)]