20235800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{181}}^1$

素因数の和:253

約数の個数: 96

約数和(自身を含む): 52132080

約数和(自身を除く): 31896280

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 43, 50, 52, 65, 86, 100, 104, 130, 172, 181, 200, 215, 260, 325, 344, 362, 430, 520, 559, 650, 724, 860, 905, 1075, 1118, 1300, 1448, 1720, 1810, 2150, 2236, 2353, 2600, 2795, 3620, 4300, 4472, 4525, 4706, 5590, 7240, 7783, 8600, 9050, 9412, 11180, 11765, 13975, 15566, 18100, 18824, 22360, 23530, 27950, 31132, 36200, 38915, 47060, 55900, 58825, 62264, 77830, 94120, 101179, 111800, 117650, 155660, 194575, 202358, 235300, 311320, 389150, 404716, 470600, 505895, 778300, 809432, 1011790, 1556600, 2023580, 2529475, 4047160, 5058950, 10117900, 20235800]

約数ペア:

[(1, 20235800), (2, 10117900), (4, 5058950), (5, 4047160), (8, 2529475), (10, 2023580), (13, 1556600), (20, 1011790), (25, 809432), (26, 778300), (40, 505895), (43, 470600), (50, 404716), (52, 389150), (65, 311320), (86, 235300), (100, 202358), (104, 194575), (130, 155660), (172, 117650), (181, 111800), (200, 101179), (215, 94120), (260, 77830), (325, 62264), (344, 58825), (362, 55900), (430, 47060), (520, 38915), (559, 36200), (650, 31132), (724, 27950), (860, 23530), (905, 22360), (1075, 18824), (1118, 18100), (1300, 15566), (1448, 13975), (1720, 11765), (1810, 11180), (2150, 9412), (2236, 9050), (2353, 8600), (2600, 7783), (2795, 7240), (3620, 5590), (4300, 4706), (4472, 4525)]