20778888572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{163}}^1\times {\mathrm{16453}}^1$

素因数の和:16782

約数の個数: 48

約数和(自身を含む): 39667303200

約数和(自身を除く): 18888414628

約数列:

[1, 2, 4, 13, 26, 52, 149, 163, 298, 326, 596, 652, 1937, 2119, 3874, 4238, 7748, 8476, 16453, 24287, 32906, 48574, 65812, 97148, 213889, 315731, 427778, 631462, 855556, 1262924, 2451497, 2681839, 4902994, 5363678, 9805988, 10727356, 31869461, 34863907, 63738922, 69727814, 127477844, 139455628, 399594011, 799188022, 1598376044, 5194722143, 10389444286, 20778888572]

約数ペア:

[(1, 20778888572), (2, 10389444286), (4, 5194722143), (13, 1598376044), (26, 799188022), (52, 399594011), (149, 139455628), (163, 127477844), (298, 69727814), (326, 63738922), (596, 34863907), (652, 31869461), (1937, 10727356), (2119, 9805988), (3874, 5363678), (4238, 4902994), (7748, 2681839), (8476, 2451497), (16453, 1262924), (24287, 855556), (32906, 631462), (48574, 427778), (65812, 315731), (97148, 213889)]