20218813420

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{661}}^1\times {\mathrm{1657}}^1$

素因数の和:2411

約数の個数: 96

約数和(自身を含む): 46467824256

約数和(自身を除く): 26249010836

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 71, 130, 142, 260, 284, 355, 661, 710, 923, 1322, 1420, 1657, 1846, 2644, 3305, 3314, 3692, 4615, 6610, 6628, 8285, 8593, 9230, 13220, 16570, 17186, 18460, 21541, 33140, 34372, 42965, 43082, 46931, 85930, 86164, 93862, 107705, 117647, 171860, 187724, 215410, 234655, 235294, 430820, 469310, 470588, 588235, 610103, 938620, 1095277, 1176470, 1220206, 1529411, 2190554, 2352940, 2440412, 3050515, 3058822, 4381108, 5476385, 6101030, 6117644, 7647055, 10952770, 12202060, 14238601, 15294110, 21905540, 28477202, 30588220, 56954404, 71193005, 77764667, 142386010, 155529334, 284772020, 311058668, 388823335, 777646670, 1010940671, 1555293340, 2021881342, 4043762684, 5054703355, 10109406710, 20218813420]

約数ペア:

[(1, 20218813420), (2, 10109406710), (4, 5054703355), (5, 4043762684), (10, 2021881342), (13, 1555293340), (20, 1010940671), (26, 777646670), (52, 388823335), (65, 311058668), (71, 284772020), (130, 155529334), (142, 142386010), (260, 77764667), (284, 71193005), (355, 56954404), (661, 30588220), (710, 28477202), (923, 21905540), (1322, 15294110), (1420, 14238601), (1657, 12202060), (1846, 10952770), (2644, 7647055), (3305, 6117644), (3314, 6101030), (3692, 5476385), (4615, 4381108), (6610, 3058822), (6628, 3050515), (8285, 2440412), (8593, 2352940), (9230, 2190554), (13220, 1529411), (16570, 1220206), (17186, 1176470), (18460, 1095277), (21541, 938620), (33140, 610103), (34372, 588235), (42965, 470588), (43082, 469310), (46931, 430820), (85930, 235294), (86164, 234655), (93862, 215410), (107705, 187724), (117647, 171860)]