40646890

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:227

約数の個数: 64

約数和(自身を含む): 81469440

約数和(自身を除く): 40822550

約数列:

[1, 2, 5, 10, 19, 31, 38, 62, 67, 95, 103, 134, 155, 190, 206, 310, 335, 515, 589, 670, 1030, 1178, 1273, 1957, 2077, 2546, 2945, 3193, 3914, 4154, 5890, 6365, 6386, 6901, 9785, 10385, 12730, 13802, 15965, 19570, 20770, 31930, 34505, 39463, 60667, 69010, 78926, 121334, 131119, 197315, 213931, 262238, 303335, 394630, 427862, 606670, 655595, 1069655, 1311190, 2139310, 4064689, 8129378, 20323445, 40646890]

約数ペア:

[(1, 40646890), (2, 20323445), (5, 8129378), (10, 4064689), (19, 2139310), (31, 1311190), (38, 1069655), (62, 655595), (67, 606670), (95, 427862), (103, 394630), (134, 303335), (155, 262238), (190, 213931), (206, 197315), (310, 131119), (335, 121334), (515, 78926), (589, 69010), (670, 60667), (1030, 39463), (1178, 34505), (1273, 31930), (1957, 20770), (2077, 19570), (2546, 15965), (2945, 13802), (3193, 12730), (3914, 10385), (4154, 9785), (5890, 6901), (6365, 6386)]