18838880

素因数分解:

$2^5\times 5^1\times {\mathrm{19}}^1\times {\mathrm{6197}}^1$

素因数の和:6231

約数の個数: 48

約数和(自身を含む): 46856880

約数和(自身を除く): 28018000

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 32, 38, 40, 76, 80, 95, 152, 160, 190, 304, 380, 608, 760, 1520, 3040, 6197, 12394, 24788, 30985, 49576, 61970, 99152, 117743, 123940, 198304, 235486, 247880, 470972, 495760, 588715, 941944, 991520, 1177430, 1883888, 2354860, 3767776, 4709720, 9419440, 18838880]

約数ペア:

[(1, 18838880), (2, 9419440), (4, 4709720), (5, 3767776), (8, 2354860), (10, 1883888), (16, 1177430), (19, 991520), (20, 941944), (32, 588715), (38, 495760), (40, 470972), (76, 247880), (80, 235486), (95, 198304), (152, 123940), (160, 117743), (190, 99152), (304, 61970), (380, 49576), (608, 30985), (760, 24788), (1520, 12394), (3040, 6197)]