20572695

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:197

約数の個数: 96

約数和(自身を含む): 44029440

約数和(自身を除く): 23456745

約数列:

[1, 3, 5, 9, 11, 13, 15, 23, 33, 39, 45, 55, 65, 69, 99, 115, 117, 139, 143, 165, 195, 207, 253, 299, 345, 417, 429, 495, 585, 695, 715, 759, 897, 1035, 1251, 1265, 1287, 1495, 1529, 1807, 2085, 2145, 2277, 2691, 3197, 3289, 3795, 4485, 4587, 5421, 6255, 6435, 7645, 9035, 9591, 9867, 11385, 13455, 13761, 15985, 16263, 16445, 19877, 22935, 27105, 28773, 29601, 35167, 41561, 47955, 49335, 59631, 68805, 81315, 99385, 105501, 124683, 143865, 148005, 175835, 178893, 207805, 298155, 316503, 374049, 457171, 527505, 623415, 894465, 1371513, 1582515, 1870245, 2285855, 4114539, 6857565, 20572695]

約数ペア:

[(1, 20572695), (3, 6857565), (5, 4114539), (9, 2285855), (11, 1870245), (13, 1582515), (15, 1371513), (23, 894465), (33, 623415), (39, 527505), (45, 457171), (55, 374049), (65, 316503), (69, 298155), (99, 207805), (115, 178893), (117, 175835), (139, 148005), (143, 143865), (165, 124683), (195, 105501), (207, 99385), (253, 81315), (299, 68805), (345, 59631), (417, 49335), (429, 47955), (495, 41561), (585, 35167), (695, 29601), (715, 28773), (759, 27105), (897, 22935), (1035, 19877), (1251, 16445), (1265, 16263), (1287, 15985), (1495, 13761), (1529, 13455), (1807, 11385), (2085, 9867), (2145, 9591), (2277, 9035), (2691, 7645), (3197, 6435), (3289, 6255), (3795, 5421), (4485, 4587)]