19236620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{307}}^1$

素因数の和:570

約数の個数: 48

約数和(自身を含む): 43827168

約数和(自身を除く): 24590548

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 241, 260, 307, 482, 614, 964, 1205, 1228, 1535, 2410, 3070, 3133, 3991, 4820, 6140, 6266, 7982, 12532, 15665, 15964, 19955, 31330, 39910, 62660, 73987, 79820, 147974, 295948, 369935, 739870, 961831, 1479740, 1923662, 3847324, 4809155, 9618310, 19236620]

約数ペア:

[(1, 19236620), (2, 9618310), (4, 4809155), (5, 3847324), (10, 1923662), (13, 1479740), (20, 961831), (26, 739870), (52, 369935), (65, 295948), (130, 147974), (241, 79820), (260, 73987), (307, 62660), (482, 39910), (614, 31330), (964, 19955), (1205, 15964), (1228, 15665), (1535, 12532), (2410, 7982), (3070, 6266), (3133, 6140), (3991, 4820)]