19049420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1787}}^1$

素因数の和:1850

約数の個数: 48

約数和(自身を含む): 44156448

約数和(自身を除く): 25107028

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 1787, 2132, 2665, 3574, 5330, 7148, 8935, 10660, 17870, 23231, 35740, 46462, 73267, 92924, 116155, 146534, 232310, 293068, 366335, 464620, 732670, 952471, 1465340, 1904942, 3809884, 4762355, 9524710, 19049420]

約数ペア:

[(1, 19049420), (2, 9524710), (4, 4762355), (5, 3809884), (10, 1904942), (13, 1465340), (20, 952471), (26, 732670), (41, 464620), (52, 366335), (65, 293068), (82, 232310), (130, 146534), (164, 116155), (205, 92924), (260, 73267), (410, 46462), (533, 35740), (820, 23231), (1066, 17870), (1787, 10660), (2132, 8935), (2665, 7148), (3574, 5330)]