260520020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{11239}}^1$

素因数の和:11328

約数の個数: 48

約数和(自身を含む): 585379200

約数和(自身を除く): 324859180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 61, 76, 95, 122, 190, 244, 305, 380, 610, 1159, 1220, 2318, 4636, 5795, 11239, 11590, 22478, 23180, 44956, 56195, 112390, 213541, 224780, 427082, 685579, 854164, 1067705, 1371158, 2135410, 2742316, 3427895, 4270820, 6855790, 13026001, 13711580, 26052002, 52104004, 65130005, 130260010, 260520020]

約数ペア:

[(1, 260520020), (2, 130260010), (4, 65130005), (5, 52104004), (10, 26052002), (19, 13711580), (20, 13026001), (38, 6855790), (61, 4270820), (76, 3427895), (95, 2742316), (122, 2135410), (190, 1371158), (244, 1067705), (305, 854164), (380, 685579), (610, 427082), (1159, 224780), (1220, 213541), (2318, 112390), (4636, 56195), (5795, 44956), (11239, 23180), (11590, 22478)]