129423980

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{21499}}^1$

素因数の和:21558

約数の個数: 48

約数和(自身を含む): 317856000

約数和(自身を除く): 188432020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 6020, 21499, 42998, 85996, 107495, 150493, 214990, 300986, 429980, 601972, 752465, 924457, 1504930, 1848914, 3009860, 3697828, 4622285, 6471199, 9244570, 12942398, 18489140, 25884796, 32355995, 64711990, 129423980]

約数ペア:

[(1, 129423980), (2, 64711990), (4, 32355995), (5, 25884796), (7, 18489140), (10, 12942398), (14, 9244570), (20, 6471199), (28, 4622285), (35, 3697828), (43, 3009860), (70, 1848914), (86, 1504930), (140, 924457), (172, 752465), (215, 601972), (301, 429980), (430, 300986), (602, 214990), (860, 150493), (1204, 107495), (1505, 85996), (3010, 42998), (6020, 21499)]