20746492

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{263}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 41291712

約数和(自身を除く): 20545220

約数列:

[1, 2, 4, 13, 26, 37, 41, 52, 74, 82, 148, 164, 263, 481, 526, 533, 962, 1052, 1066, 1517, 1924, 2132, 3034, 3419, 6068, 6838, 9731, 10783, 13676, 19462, 19721, 21566, 38924, 39442, 43132, 78884, 126503, 140179, 253006, 280358, 398971, 506012, 560716, 797942, 1595884, 5186623, 10373246, 20746492]

約数ペア:

[(1, 20746492), (2, 10373246), (4, 5186623), (13, 1595884), (26, 797942), (37, 560716), (41, 506012), (52, 398971), (74, 280358), (82, 253006), (148, 140179), (164, 126503), (263, 78884), (481, 43132), (526, 39442), (533, 38924), (962, 21566), (1052, 19721), (1066, 19462), (1517, 13676), (1924, 10783), (2132, 9731), (3034, 6838), (3419, 6068)]