199440640

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{22259}}^1$

素因数の和:22287

約数の個数: 72

約数和(自身を含む): 545993280

約数和(自身を除く): 346552640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 280, 320, 448, 560, 640, 896, 1120, 1280, 1792, 2240, 4480, 8960, 22259, 44518, 89036, 111295, 155813, 178072, 222590, 311626, 356144, 445180, 623252, 712288, 779065, 890360, 1246504, 1424576, 1558130, 1780720, 2493008, 2849152, 3116260, 3561440, 4986016, 5698304, 6232520, 7122880, 9972032, 12465040, 14245760, 19944064, 24930080, 28491520, 39888128, 49860160, 99720320, 199440640]

約数ペア:

[(1, 199440640), (2, 99720320), (4, 49860160), (5, 39888128), (7, 28491520), (8, 24930080), (10, 19944064), (14, 14245760), (16, 12465040), (20, 9972032), (28, 7122880), (32, 6232520), (35, 5698304), (40, 4986016), (56, 3561440), (64, 3116260), (70, 2849152), (80, 2493008), (112, 1780720), (128, 1558130), (140, 1424576), (160, 1246504), (224, 890360), (256, 779065), (280, 712288), (320, 623252), (448, 445180), (560, 356144), (640, 311626), (896, 222590), (1120, 178072), (1280, 155813), (1792, 111295), (2240, 89036), (4480, 44518), (8960, 22259)]