20689127964

素因数分解:

$2^2\times 3^2\times {\mathrm{47}}^1\times {\mathrm{113}}^1\times {\mathrm{241}}^1\times {\mathrm{449}}^1$

素因数の和:860

約数の個数: 144

約数和(自身を含む): 54226972800

約数和(自身を除く): 33537844836

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 113, 141, 188, 226, 241, 282, 339, 423, 449, 452, 482, 564, 678, 723, 846, 898, 964, 1017, 1347, 1356, 1446, 1692, 1796, 2034, 2169, 2694, 2892, 4041, 4068, 4338, 5311, 5388, 8082, 8676, 10622, 11327, 15933, 16164, 21103, 21244, 22654, 27233, 31866, 33981, 42206, 45308, 47799, 50737, 54466, 63309, 63732, 67962, 81699, 84412, 95598, 101474, 101943, 108209, 108932, 126618, 135924, 152211, 163398, 189927, 191196, 202948, 203886, 216418, 245097, 253236, 304422, 324627, 326796, 379854, 407772, 432836, 456633, 490194, 608844, 649254, 759708, 913266, 973881, 980388, 1279951, 1298508, 1826532, 1947762, 2384639, 2559902, 3839853, 3895524, 4769278, 5085823, 5119804, 7153917, 7679706, 9538556, 10171646, 11519559, 12227617, 14307834, 15257469, 15359412, 20343292, 21461751, 23039118, 24455234, 28615668, 30514938, 36682851, 42923502, 45772407, 46078236, 48910468, 61029876, 73365702, 85847004, 91544814, 110048553, 146731404, 183089628, 220097106, 440194212, 574697999, 1149395998, 1724093997, 2298791996, 3448187994, 5172281991, 6896375988, 10344563982, 20689127964]

約数ペア:

[(1, 20689127964), (2, 10344563982), (3, 6896375988), (4, 5172281991), (6, 3448187994), (9, 2298791996), (12, 1724093997), (18, 1149395998), (36, 574697999), (47, 440194212), (94, 220097106), (113, 183089628), (141, 146731404), (188, 110048553), (226, 91544814), (241, 85847004), (282, 73365702), (339, 61029876), (423, 48910468), (449, 46078236), (452, 45772407), (482, 42923502), (564, 36682851), (678, 30514938), (723, 28615668), (846, 24455234), (898, 23039118), (964, 21461751), (1017, 20343292), (1347, 15359412), (1356, 15257469), (1446, 14307834), (1692, 12227617), (1796, 11519559), (2034, 10171646), (2169, 9538556), (2694, 7679706), (2892, 7153917), (4041, 5119804), (4068, 5085823), (4338, 4769278), (5311, 3895524), (5388, 3839853), (8082, 2559902), (8676, 2384639), (10622, 1947762), (11327, 1826532), (15933, 1298508), (16164, 1279951), (21103, 980388), (21244, 973881), (22654, 913266), (27233, 759708), (31866, 649254), (33981, 608844), (42206, 490194), (45308, 456633), (47799, 432836), (50737, 407772), (54466, 379854), (63309, 326796), (63732, 324627), (67962, 304422), (81699, 253236), (84412, 245097), (95598, 216418), (101474, 203886), (101943, 202948), (108209, 191196), (108932, 189927), (126618, 163398), (135924, 152211)]