19421300

素因数分解:

$2^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1$

素因数の和:261

約数の個数: 72

約数和(自身を含む): 45023160

約数和(自身を除く): 25601860

約数列:

[1, 2, 4, 5, 10, 20, 25, 29, 37, 50, 58, 74, 100, 116, 145, 148, 181, 185, 290, 362, 370, 580, 724, 725, 740, 905, 925, 1073, 1450, 1810, 1850, 2146, 2900, 3620, 3700, 4292, 4525, 5249, 5365, 6697, 9050, 10498, 10730, 13394, 18100, 20996, 21460, 26245, 26788, 26825, 33485, 52490, 53650, 66970, 104980, 107300, 131225, 133940, 167425, 194213, 262450, 334850, 388426, 524900, 669700, 776852, 971065, 1942130, 3884260, 4855325, 9710650, 19421300]

約数ペア:

[(1, 19421300), (2, 9710650), (4, 4855325), (5, 3884260), (10, 1942130), (20, 971065), (25, 776852), (29, 669700), (37, 524900), (50, 388426), (58, 334850), (74, 262450), (100, 194213), (116, 167425), (145, 133940), (148, 131225), (181, 107300), (185, 104980), (290, 66970), (362, 53650), (370, 52490), (580, 33485), (724, 26825), (725, 26788), (740, 26245), (905, 21460), (925, 20996), (1073, 18100), (1450, 13394), (1810, 10730), (1850, 10498), (2146, 9050), (2900, 6697), (3620, 5365), (3700, 5249), (4292, 4525)]