197019700

素因数分解:

$2^2\times 5^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:421

約数の個数: 72

約数和(自身を含む): 438768792

約数和(自身を除く): 241749092

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 73, 100, 137, 146, 197, 274, 292, 365, 394, 548, 685, 730, 788, 985, 1370, 1460, 1825, 1970, 2740, 3425, 3650, 3940, 4925, 6850, 7300, 9850, 10001, 13700, 14381, 19700, 20002, 26989, 28762, 40004, 50005, 53978, 57524, 71905, 100010, 107956, 134945, 143810, 200020, 250025, 269890, 287620, 359525, 500050, 539780, 674725, 719050, 1000100, 1349450, 1438100, 1970197, 2698900, 3940394, 7880788, 9850985, 19701970, 39403940, 49254925, 98509850, 197019700]

約数ペア:

[(1, 197019700), (2, 98509850), (4, 49254925), (5, 39403940), (10, 19701970), (20, 9850985), (25, 7880788), (50, 3940394), (73, 2698900), (100, 1970197), (137, 1438100), (146, 1349450), (197, 1000100), (274, 719050), (292, 674725), (365, 539780), (394, 500050), (548, 359525), (685, 287620), (730, 269890), (788, 250025), (985, 200020), (1370, 143810), (1460, 134945), (1825, 107956), (1970, 100010), (2740, 71905), (3425, 57524), (3650, 53978), (3940, 50005), (4925, 40004), (6850, 28762), (7300, 26989), (9850, 20002), (10001, 19700), (13700, 14381)]