640984850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{19753}}^1$

素因数の和:19835

約数の個数: 48

約数和(自身を含む): 1322727840

約数和(自身を除く): 681742990

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 59, 110, 118, 275, 295, 550, 590, 649, 1298, 1475, 2950, 3245, 6490, 16225, 19753, 32450, 39506, 98765, 197530, 217283, 434566, 493825, 987650, 1086415, 1165427, 2172830, 2330854, 5432075, 5827135, 10864150, 11654270, 12819697, 25639394, 29135675, 58271350, 64098485, 128196970, 320492425, 640984850]

約数ペア:

[(1, 640984850), (2, 320492425), (5, 128196970), (10, 64098485), (11, 58271350), (22, 29135675), (25, 25639394), (50, 12819697), (55, 11654270), (59, 10864150), (110, 5827135), (118, 5432075), (275, 2330854), (295, 2172830), (550, 1165427), (590, 1086415), (649, 987650), (1298, 493825), (1475, 434566), (2950, 217283), (3245, 197530), (6490, 98765), (16225, 39506), (19753, 32450)]