4499840

素因数分解:

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

素因数の和:187

約数の個数: 64

約数和(自身を含む): 11016000

約数和(自身を除く): 6516160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 79, 80, 89, 128, 158, 160, 178, 316, 320, 356, 395, 445, 632, 640, 712, 790, 890, 1264, 1424, 1580, 1780, 2528, 2848, 3160, 3560, 5056, 5696, 6320, 7031, 7120, 10112, 11392, 12640, 14062, 14240, 25280, 28124, 28480, 35155, 50560, 56248, 56960, 70310, 112496, 140620, 224992, 281240, 449984, 562480, 899968, 1124960, 2249920, 4499840]

約数ペア:

[(1, 4499840), (2, 2249920), (4, 1124960), (5, 899968), (8, 562480), (10, 449984), (16, 281240), (20, 224992), (32, 140620), (40, 112496), (64, 70310), (79, 56960), (80, 56248), (89, 50560), (128, 35155), (158, 28480), (160, 28124), (178, 25280), (316, 14240), (320, 14062), (356, 12640), (395, 11392), (445, 10112), (632, 7120), (640, 7031), (712, 6320), (790, 5696), (890, 5056), (1264, 3560), (1424, 3160), (1580, 2848), (1780, 2528)]