20644288

素因数分解:

$2^6\times 7^2\times {\mathrm{29}}^1\times {\mathrm{227}}^1$

素因数の和:282

約数の個数: 84

約数和(自身を含む): 49514760

約数和(自身を除く): 28870472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 29, 32, 49, 56, 58, 64, 98, 112, 116, 196, 203, 224, 227, 232, 392, 406, 448, 454, 464, 784, 812, 908, 928, 1421, 1568, 1589, 1624, 1816, 1856, 2842, 3136, 3178, 3248, 3632, 5684, 6356, 6496, 6583, 7264, 11123, 11368, 12712, 12992, 13166, 14528, 22246, 22736, 25424, 26332, 44492, 45472, 46081, 50848, 52664, 88984, 90944, 92162, 101696, 105328, 177968, 184324, 210656, 322567, 355936, 368648, 421312, 645134, 711872, 737296, 1290268, 1474592, 2580536, 2949184, 5161072, 10322144, 20644288]

約数ペア:

[(1, 20644288), (2, 10322144), (4, 5161072), (7, 2949184), (8, 2580536), (14, 1474592), (16, 1290268), (28, 737296), (29, 711872), (32, 645134), (49, 421312), (56, 368648), (58, 355936), (64, 322567), (98, 210656), (112, 184324), (116, 177968), (196, 105328), (203, 101696), (224, 92162), (227, 90944), (232, 88984), (392, 52664), (406, 50848), (448, 46081), (454, 45472), (464, 44492), (784, 26332), (812, 25424), (908, 22736), (928, 22246), (1421, 14528), (1568, 13166), (1589, 12992), (1624, 12712), (1816, 11368), (1856, 11123), (2842, 7264), (3136, 6583), (3178, 6496), (3248, 6356), (3632, 5684)]