20919506048

素因数分解:

$2^7\times 7^1\times {\mathrm{73}}^1\times {\mathrm{319831}}^1$

素因数の和:319925

約数の個数: 64

約数和(自身を含む): 48281838720

約数和(自身を除く): 27362332672

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 73, 112, 128, 146, 224, 292, 448, 511, 584, 896, 1022, 1168, 2044, 2336, 4088, 4672, 8176, 9344, 16352, 32704, 65408, 319831, 639662, 1279324, 2238817, 2558648, 4477634, 5117296, 8955268, 10234592, 17910536, 20469184, 23347663, 35821072, 40938368, 46695326, 71642144, 93390652, 143284288, 163433641, 186781304, 286568576, 326867282, 373562608, 653734564, 747125216, 1307469128, 1494250432, 2614938256, 2988500864, 5229876512, 10459753024, 20919506048]

約数ペア:

[(1, 20919506048), (2, 10459753024), (4, 5229876512), (7, 2988500864), (8, 2614938256), (14, 1494250432), (16, 1307469128), (28, 747125216), (32, 653734564), (56, 373562608), (64, 326867282), (73, 286568576), (112, 186781304), (128, 163433641), (146, 143284288), (224, 93390652), (292, 71642144), (448, 46695326), (511, 40938368), (584, 35821072), (896, 23347663), (1022, 20469184), (1168, 17910536), (2044, 10234592), (2336, 8955268), (4088, 5117296), (4672, 4477634), (8176, 2558648), (9344, 2238817), (16352, 1279324), (32704, 639662), (65408, 319831)]