20457835300

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{4139}}^1$

素因数の和:4490

約数の個数: 144

約数和(自身を含む): 53126599680

約数和(自身を除く): 32668764380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 23, 25, 28, 35, 46, 50, 70, 92, 100, 115, 140, 161, 175, 230, 307, 322, 350, 460, 575, 614, 644, 700, 805, 1150, 1228, 1535, 1610, 2149, 2300, 3070, 3220, 4025, 4139, 4298, 6140, 7061, 7675, 8050, 8278, 8596, 10745, 14122, 15350, 16100, 16556, 20695, 21490, 28244, 28973, 30700, 35305, 41390, 42980, 49427, 53725, 57946, 70610, 82780, 95197, 98854, 103475, 107450, 115892, 141220, 144865, 176525, 190394, 197708, 206950, 214900, 247135, 289730, 353050, 380788, 413900, 475985, 494270, 579460, 666379, 706100, 724325, 951970, 988540, 1235675, 1270673, 1332758, 1448650, 1903940, 2379925, 2471350, 2541346, 2665516, 2897300, 3331895, 4759850, 4942700, 5082692, 6353365, 6663790, 8894711, 9519700, 12706730, 13327580, 16659475, 17789422, 25413460, 29225479, 31766825, 33318950, 35578844, 44473555, 58450958, 63533650, 66637900, 88947110, 116901916, 127067300, 146127395, 177894220, 204578353, 222367775, 292254790, 409156706, 444735550, 584509580, 730636975, 818313412, 889471100, 1022891765, 1461273950, 2045783530, 2922547900, 4091567060, 5114458825, 10228917650, 20457835300]

約数ペア:

[(1, 20457835300), (2, 10228917650), (4, 5114458825), (5, 4091567060), (7, 2922547900), (10, 2045783530), (14, 1461273950), (20, 1022891765), (23, 889471100), (25, 818313412), (28, 730636975), (35, 584509580), (46, 444735550), (50, 409156706), (70, 292254790), (92, 222367775), (100, 204578353), (115, 177894220), (140, 146127395), (161, 127067300), (175, 116901916), (230, 88947110), (307, 66637900), (322, 63533650), (350, 58450958), (460, 44473555), (575, 35578844), (614, 33318950), (644, 31766825), (700, 29225479), (805, 25413460), (1150, 17789422), (1228, 16659475), (1535, 13327580), (1610, 12706730), (2149, 9519700), (2300, 8894711), (3070, 6663790), (3220, 6353365), (4025, 5082692), (4139, 4942700), (4298, 4759850), (6140, 3331895), (7061, 2897300), (7675, 2665516), (8050, 2541346), (8278, 2471350), (8596, 2379925), (10745, 1903940), (14122, 1448650), (15350, 1332758), (16100, 1270673), (16556, 1235675), (20695, 988540), (21490, 951970), (28244, 724325), (28973, 706100), (30700, 666379), (35305, 579460), (41390, 494270), (42980, 475985), (49427, 413900), (53725, 380788), (57946, 353050), (70610, 289730), (82780, 247135), (95197, 214900), (98854, 206950), (103475, 197708), (107450, 190394), (115892, 176525), (141220, 144865)]