19975500

素因数分解:

$2^2\times 3^2\times 5^3\times {\mathrm{23}}^1\times {\mathrm{193}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 66096576

約数和(自身を除く): 46121076

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 25, 30, 36, 45, 46, 50, 60, 69, 75, 90, 92, 100, 115, 125, 138, 150, 180, 193, 207, 225, 230, 250, 276, 300, 345, 375, 386, 414, 450, 460, 500, 575, 579, 690, 750, 772, 828, 900, 965, 1035, 1125, 1150, 1158, 1380, 1500, 1725, 1737, 1930, 2070, 2250, 2300, 2316, 2875, 2895, 3450, 3474, 3860, 4140, 4439, 4500, 4825, 5175, 5750, 5790, 6900, 6948, 8625, 8685, 8878, 9650, 10350, 11500, 11580, 13317, 14475, 17250, 17370, 17756, 19300, 20700, 22195, 24125, 25875, 26634, 28950, 34500, 34740, 39951, 43425, 44390, 48250, 51750, 53268, 57900, 66585, 72375, 79902, 86850, 88780, 96500, 103500, 110975, 133170, 144750, 159804, 173700, 199755, 217125, 221950, 266340, 289500, 332925, 399510, 434250, 443900, 554875, 665850, 799020, 868500, 998775, 1109750, 1331700, 1664625, 1997550, 2219500, 3329250, 3995100, 4993875, 6658500, 9987750, 19975500]

約数ペア:

[(1, 19975500), (2, 9987750), (3, 6658500), (4, 4993875), (5, 3995100), (6, 3329250), (9, 2219500), (10, 1997550), (12, 1664625), (15, 1331700), (18, 1109750), (20, 998775), (23, 868500), (25, 799020), (30, 665850), (36, 554875), (45, 443900), (46, 434250), (50, 399510), (60, 332925), (69, 289500), (75, 266340), (90, 221950), (92, 217125), (100, 199755), (115, 173700), (125, 159804), (138, 144750), (150, 133170), (180, 110975), (193, 103500), (207, 96500), (225, 88780), (230, 86850), (250, 79902), (276, 72375), (300, 66585), (345, 57900), (375, 53268), (386, 51750), (414, 48250), (450, 44390), (460, 43425), (500, 39951), (575, 34740), (579, 34500), (690, 28950), (750, 26634), (772, 25875), (828, 24125), (900, 22195), (965, 20700), (1035, 19300), (1125, 17756), (1150, 17370), (1158, 17250), (1380, 14475), (1500, 13317), (1725, 11580), (1737, 11500), (1930, 10350), (2070, 9650), (2250, 8878), (2300, 8685), (2316, 8625), (2875, 6948), (2895, 6900), (3450, 5790), (3474, 5750), (3860, 5175), (4140, 4825), (4439, 4500)]