189877790

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{21121}}^1$

素因数の和:21188

約数の個数: 32

約数和(自身を含む): 364988160

約数和(自身を除く): 175110370

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 4495, 8990, 21121, 42242, 105605, 211210, 612509, 654751, 1225018, 1309502, 3062545, 3273755, 6125090, 6547510, 18987779, 37975558, 94938895, 189877790]

約数ペア:

[(1, 189877790), (2, 94938895), (5, 37975558), (10, 18987779), (29, 6547510), (31, 6125090), (58, 3273755), (62, 3062545), (145, 1309502), (155, 1225018), (290, 654751), (310, 612509), (899, 211210), (1798, 105605), (4495, 42242), (8990, 21121)]