20179963648

素因数分解:

$2^8\times {\mathrm{13}}^1\times {\mathrm{229}}^1\times {\mathrm{26479}}^1$

素因数の和:26737

約数の個数: 72

約数和(自身を含む): 43570721600

約数和(自身を除く): 23390757952

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 229, 256, 416, 458, 832, 916, 1664, 1832, 2977, 3328, 3664, 5954, 7328, 11908, 14656, 23816, 26479, 29312, 47632, 52958, 58624, 95264, 105916, 190528, 211832, 344227, 381056, 423664, 688454, 762112, 847328, 1376908, 1694656, 2753816, 3389312, 5507632, 6063691, 6778624, 11015264, 12127382, 22030528, 24254764, 44061056, 48509528, 78827983, 88122112, 97019056, 157655966, 194038112, 315311932, 388076224, 630623864, 776152448, 1261247728, 1552304896, 2522495456, 5044990912, 10089981824, 20179963648]

約数ペア:

[(1, 20179963648), (2, 10089981824), (4, 5044990912), (8, 2522495456), (13, 1552304896), (16, 1261247728), (26, 776152448), (32, 630623864), (52, 388076224), (64, 315311932), (104, 194038112), (128, 157655966), (208, 97019056), (229, 88122112), (256, 78827983), (416, 48509528), (458, 44061056), (832, 24254764), (916, 22030528), (1664, 12127382), (1832, 11015264), (2977, 6778624), (3328, 6063691), (3664, 5507632), (5954, 3389312), (7328, 2753816), (11908, 1694656), (14656, 1376908), (23816, 847328), (26479, 762112), (29312, 688454), (47632, 423664), (52958, 381056), (58624, 344227), (95264, 211832), (105916, 190528)]