221775316

素因数分解:

$2^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{397}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 452535552

約数和(自身を除く): 230760236

約数列:

[1, 2, 4, 7, 14, 28, 71, 142, 281, 284, 397, 497, 562, 794, 994, 1124, 1588, 1967, 1988, 2779, 3934, 5558, 7868, 11116, 19951, 28187, 39902, 56374, 79804, 111557, 112748, 139657, 197309, 223114, 279314, 394618, 446228, 558628, 780899, 789236, 1561798, 3123596, 7920547, 15841094, 31682188, 55443829, 110887658, 221775316]

約数ペア:

[(1, 221775316), (2, 110887658), (4, 55443829), (7, 31682188), (14, 15841094), (28, 7920547), (71, 3123596), (142, 1561798), (281, 789236), (284, 780899), (397, 558628), (497, 446228), (562, 394618), (794, 279314), (994, 223114), (1124, 197309), (1588, 139657), (1967, 112748), (1988, 111557), (2779, 79804), (3934, 56374), (5558, 39902), (7868, 28187), (11116, 19951)]