19437780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{2473}}^1$

素因数の和:2616

約数の個数: 48

約数和(自身を含む): 54863424

約数和(自身を除く): 35425644

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2473, 2620, 3930, 4946, 7419, 7860, 9892, 12365, 14838, 24730, 29676, 37095, 49460, 74190, 148380, 323963, 647926, 971889, 1295852, 1619815, 1943778, 3239630, 3887556, 4859445, 6479260, 9718890, 19437780]

約数ペア:

[(1, 19437780), (2, 9718890), (3, 6479260), (4, 4859445), (5, 3887556), (6, 3239630), (10, 1943778), (12, 1619815), (15, 1295852), (20, 971889), (30, 647926), (60, 323963), (131, 148380), (262, 74190), (393, 49460), (524, 37095), (655, 29676), (786, 24730), (1310, 14838), (1572, 12365), (1965, 9892), (2473, 7860), (2620, 7419), (3930, 4946)]