22388840

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{331}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 53784000

約数和(自身を除く): 31395160

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 178, 190, 331, 356, 380, 445, 662, 712, 760, 890, 1324, 1655, 1691, 1780, 2648, 3310, 3382, 3560, 6289, 6620, 6764, 8455, 12578, 13240, 13528, 16910, 25156, 29459, 31445, 33820, 50312, 58918, 62890, 67640, 117836, 125780, 147295, 235672, 251560, 294590, 559721, 589180, 1119442, 1178360, 2238884, 2798605, 4477768, 5597210, 11194420, 22388840]

約数ペア:

[(1, 22388840), (2, 11194420), (4, 5597210), (5, 4477768), (8, 2798605), (10, 2238884), (19, 1178360), (20, 1119442), (38, 589180), (40, 559721), (76, 294590), (89, 251560), (95, 235672), (152, 147295), (178, 125780), (190, 117836), (331, 67640), (356, 62890), (380, 58918), (445, 50312), (662, 33820), (712, 31445), (760, 29459), (890, 25156), (1324, 16910), (1655, 13528), (1691, 13240), (1780, 12578), (2648, 8455), (3310, 6764), (3382, 6620), (3560, 6289)]