165640000

素因数分解:

$2^6\times 5^4\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:174

約数の個数: 140

約数和(自身を含む): 424917108

約数和(自身を除く): 259277108

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 41, 50, 64, 80, 82, 100, 101, 125, 160, 164, 200, 202, 205, 250, 320, 328, 400, 404, 410, 500, 505, 625, 656, 800, 808, 820, 1000, 1010, 1025, 1250, 1312, 1600, 1616, 1640, 2000, 2020, 2050, 2500, 2525, 2624, 3232, 3280, 4000, 4040, 4100, 4141, 5000, 5050, 5125, 6464, 6560, 8000, 8080, 8200, 8282, 10000, 10100, 10250, 12625, 13120, 16160, 16400, 16564, 20000, 20200, 20500, 20705, 25250, 25625, 32320, 32800, 33128, 40000, 40400, 41000, 41410, 50500, 51250, 63125, 65600, 66256, 80800, 82000, 82820, 101000, 102500, 103525, 126250, 132512, 161600, 164000, 165640, 202000, 205000, 207050, 252500, 265024, 328000, 331280, 404000, 410000, 414100, 505000, 517625, 662560, 808000, 820000, 828200, 1010000, 1035250, 1325120, 1640000, 1656400, 2020000, 2070500, 2588125, 3312800, 4040000, 4141000, 5176250, 6625600, 8282000, 10352500, 16564000, 20705000, 33128000, 41410000, 82820000, 165640000]

約数ペア:

[(1, 165640000), (2, 82820000), (4, 41410000), (5, 33128000), (8, 20705000), (10, 16564000), (16, 10352500), (20, 8282000), (25, 6625600), (32, 5176250), (40, 4141000), (41, 4040000), (50, 3312800), (64, 2588125), (80, 2070500), (82, 2020000), (100, 1656400), (101, 1640000), (125, 1325120), (160, 1035250), (164, 1010000), (200, 828200), (202, 820000), (205, 808000), (250, 662560), (320, 517625), (328, 505000), (400, 414100), (404, 410000), (410, 404000), (500, 331280), (505, 328000), (625, 265024), (656, 252500), (800, 207050), (808, 205000), (820, 202000), (1000, 165640), (1010, 164000), (1025, 161600), (1250, 132512), (1312, 126250), (1600, 103525), (1616, 102500), (1640, 101000), (2000, 82820), (2020, 82000), (2050, 80800), (2500, 66256), (2525, 65600), (2624, 63125), (3232, 51250), (3280, 50500), (4000, 41410), (4040, 41000), (4100, 40400), (4141, 40000), (5000, 33128), (5050, 32800), (5125, 32320), (6464, 25625), (6560, 25250), (8000, 20705), (8080, 20500), (8200, 20200), (8282, 20000), (10000, 16564), (10100, 16400), (10250, 16160), (12625, 13120)]