20102455880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{241}}^1\times {\mathrm{160409}}^1$

素因数の和:160674

約数の個数: 64

約数和(自身を含む): 48912217200

約数和(自身を除く): 28809761320

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 241, 260, 482, 520, 964, 1205, 1928, 2410, 3133, 4820, 6266, 9640, 12532, 15665, 25064, 31330, 62660, 125320, 160409, 320818, 641636, 802045, 1283272, 1604090, 2085317, 3208180, 4170634, 6416360, 8341268, 10426585, 16682536, 20853170, 38658569, 41706340, 77317138, 83412680, 154634276, 193292845, 309268552, 386585690, 502561397, 773171380, 1005122794, 1546342760, 2010245588, 2512806985, 4020491176, 5025613970, 10051227940, 20102455880]

約数ペア:

[(1, 20102455880), (2, 10051227940), (4, 5025613970), (5, 4020491176), (8, 2512806985), (10, 2010245588), (13, 1546342760), (20, 1005122794), (26, 773171380), (40, 502561397), (52, 386585690), (65, 309268552), (104, 193292845), (130, 154634276), (241, 83412680), (260, 77317138), (482, 41706340), (520, 38658569), (964, 20853170), (1205, 16682536), (1928, 10426585), (2410, 8341268), (3133, 6416360), (4820, 4170634), (6266, 3208180), (9640, 2085317), (12532, 1604090), (15665, 1283272), (25064, 802045), (31330, 641636), (62660, 320818), (125320, 160409)]