16426640

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{107}}^1$

素因数の和:240

約数の個数: 80

約数和(自身を含む): 40979520

約数和(自身を除く): 24552880

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 101, 107, 152, 190, 202, 214, 304, 380, 404, 428, 505, 535, 760, 808, 856, 1010, 1070, 1520, 1616, 1712, 1919, 2020, 2033, 2140, 3838, 4040, 4066, 4280, 7676, 8080, 8132, 8560, 9595, 10165, 10807, 15352, 16264, 19190, 20330, 21614, 30704, 32528, 38380, 40660, 43228, 54035, 76760, 81320, 86456, 108070, 153520, 162640, 172912, 205333, 216140, 410666, 432280, 821332, 864560, 1026665, 1642664, 2053330, 3285328, 4106660, 8213320, 16426640]

約数ペア:

[(1, 16426640), (2, 8213320), (4, 4106660), (5, 3285328), (8, 2053330), (10, 1642664), (16, 1026665), (19, 864560), (20, 821332), (38, 432280), (40, 410666), (76, 216140), (80, 205333), (95, 172912), (101, 162640), (107, 153520), (152, 108070), (190, 86456), (202, 81320), (214, 76760), (304, 54035), (380, 43228), (404, 40660), (428, 38380), (505, 32528), (535, 30704), (760, 21614), (808, 20330), (856, 19190), (1010, 16264), (1070, 15352), (1520, 10807), (1616, 10165), (1712, 9595), (1919, 8560), (2020, 8132), (2033, 8080), (2140, 7676), (3838, 4280), (4040, 4066)]