21559360

素因数分解:

$2^6\times 5^1\times {\mathrm{89}}^1\times {\mathrm{757}}^1$

素因数の和:863

約数の個数: 56

約数和(自身を含む): 51983640

約数和(自身を除く): 30424280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 89, 160, 178, 320, 356, 445, 712, 757, 890, 1424, 1514, 1780, 2848, 3028, 3560, 3785, 5696, 6056, 7120, 7570, 12112, 14240, 15140, 24224, 28480, 30280, 48448, 60560, 67373, 121120, 134746, 242240, 269492, 336865, 538984, 673730, 1077968, 1347460, 2155936, 2694920, 4311872, 5389840, 10779680, 21559360]

約数ペア:

[(1, 21559360), (2, 10779680), (4, 5389840), (5, 4311872), (8, 2694920), (10, 2155936), (16, 1347460), (20, 1077968), (32, 673730), (40, 538984), (64, 336865), (80, 269492), (89, 242240), (160, 134746), (178, 121120), (320, 67373), (356, 60560), (445, 48448), (712, 30280), (757, 28480), (890, 24224), (1424, 15140), (1514, 14240), (1780, 12112), (2848, 7570), (3028, 7120), (3560, 6056), (3785, 5696)]