21761138720

素因数分解:

$2^5\times 5^1\times {\mathrm{8053}}^1\times {\mathrm{16889}}^1$

素因数の和:24957

約数の個数: 48

約数和(自身を含む): 51420118680

約数和(自身を除く): 29658979960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 8053, 16106, 16889, 32212, 33778, 40265, 64424, 67556, 80530, 84445, 128848, 135112, 161060, 168890, 257696, 270224, 322120, 337780, 540448, 644240, 675560, 1288480, 1351120, 2702240, 136007117, 272014234, 544028468, 680035585, 1088056936, 1360071170, 2176113872, 2720142340, 4352227744, 5440284680, 10880569360, 21761138720]

約数ペア:

[(1, 21761138720), (2, 10880569360), (4, 5440284680), (5, 4352227744), (8, 2720142340), (10, 2176113872), (16, 1360071170), (20, 1088056936), (32, 680035585), (40, 544028468), (80, 272014234), (160, 136007117), (8053, 2702240), (16106, 1351120), (16889, 1288480), (32212, 675560), (33778, 644240), (40265, 540448), (64424, 337780), (67556, 322120), (80530, 270224), (84445, 257696), (128848, 168890), (135112, 161060)]