31498880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 128

約数和(自身を含む): 88128000

約数和(自身を除く): 56629120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 79, 80, 89, 112, 128, 140, 158, 160, 178, 224, 280, 316, 320, 356, 395, 445, 448, 553, 560, 623, 632, 640, 712, 790, 890, 896, 1106, 1120, 1246, 1264, 1424, 1580, 1780, 2212, 2240, 2492, 2528, 2765, 2848, 3115, 3160, 3560, 4424, 4480, 4984, 5056, 5530, 5696, 6230, 6320, 7031, 7120, 8848, 9968, 10112, 11060, 11392, 12460, 12640, 14062, 14240, 17696, 19936, 22120, 24920, 25280, 28124, 28480, 35155, 35392, 39872, 44240, 49217, 49840, 50560, 56248, 56960, 70310, 70784, 79744, 88480, 98434, 99680, 112496, 140620, 176960, 196868, 199360, 224992, 246085, 281240, 353920, 393736, 398720, 449984, 492170, 562480, 787472, 899968, 984340, 1124960, 1574944, 1968680, 2249920, 3149888, 3937360, 4499840, 6299776, 7874720, 15749440, 31498880]

約数ペア:

[(1, 31498880), (2, 15749440), (4, 7874720), (5, 6299776), (7, 4499840), (8, 3937360), (10, 3149888), (14, 2249920), (16, 1968680), (20, 1574944), (28, 1124960), (32, 984340), (35, 899968), (40, 787472), (56, 562480), (64, 492170), (70, 449984), (79, 398720), (80, 393736), (89, 353920), (112, 281240), (128, 246085), (140, 224992), (158, 199360), (160, 196868), (178, 176960), (224, 140620), (280, 112496), (316, 99680), (320, 98434), (356, 88480), (395, 79744), (445, 70784), (448, 70310), (553, 56960), (560, 56248), (623, 50560), (632, 49840), (640, 49217), (712, 44240), (790, 39872), (890, 35392), (896, 35155), (1106, 28480), (1120, 28124), (1246, 25280), (1264, 24920), (1424, 22120), (1580, 19936), (1780, 17696), (2212, 14240), (2240, 14062), (2492, 12640), (2528, 12460), (2765, 11392), (2848, 11060), (3115, 10112), (3160, 9968), (3560, 8848), (4424, 7120), (4480, 7031), (4984, 6320), (5056, 6230), (5530, 5696)]