71520850

素因数分解:

$2^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:399

約数の個数: 48

約数和(自身を含む): 137221128

約数和(自身を除く): 65700278

約数列:

[1, 2, 5, 10, 25, 50, 53, 106, 137, 197, 265, 274, 394, 530, 685, 985, 1325, 1370, 1970, 2650, 3425, 4925, 6850, 7261, 9850, 10441, 14522, 20882, 26989, 36305, 52205, 53978, 72610, 104410, 134945, 181525, 261025, 269890, 363050, 522050, 674725, 1349450, 1430417, 2860834, 7152085, 14304170, 35760425, 71520850]

約数ペア:

[(1, 71520850), (2, 35760425), (5, 14304170), (10, 7152085), (25, 2860834), (50, 1430417), (53, 1349450), (106, 674725), (137, 522050), (197, 363050), (265, 269890), (274, 261025), (394, 181525), (530, 134945), (685, 104410), (985, 72610), (1325, 53978), (1370, 52205), (1970, 36305), (2650, 26989), (3425, 20882), (4925, 14522), (6850, 10441), (7261, 9850)]