75431990

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{3989}}^1$

素因数の和:4088

約数の個数: 32

約数和(自身を含む): 142490880

約数和(自身を除く): 67058890

約数列:

[1, 2, 5, 10, 31, 61, 62, 122, 155, 305, 310, 610, 1891, 3782, 3989, 7978, 9455, 18910, 19945, 39890, 123659, 243329, 247318, 486658, 618295, 1216645, 1236590, 2433290, 7543199, 15086398, 37715995, 75431990]

約数ペア:

[(1, 75431990), (2, 37715995), (5, 15086398), (10, 7543199), (31, 2433290), (61, 1236590), (62, 1216645), (122, 618295), (155, 486658), (305, 247318), (310, 243329), (610, 123659), (1891, 39890), (3782, 19945), (3989, 18910), (7978, 9455)]