20773550

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:226

約数の個数: 72

約数和(自身を含む): 46012680

約数和(自身を除く): 25239130

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 61, 70, 98, 122, 139, 175, 245, 278, 305, 350, 427, 490, 610, 695, 854, 973, 1225, 1390, 1525, 1946, 2135, 2450, 2989, 3050, 3475, 4270, 4865, 5978, 6811, 6950, 8479, 9730, 10675, 13622, 14945, 16958, 21350, 24325, 29890, 34055, 42395, 48650, 59353, 68110, 74725, 84790, 118706, 149450, 170275, 211975, 296765, 340550, 415471, 423950, 593530, 830942, 1483825, 2077355, 2967650, 4154710, 10386775, 20773550]

約数ペア:

[(1, 20773550), (2, 10386775), (5, 4154710), (7, 2967650), (10, 2077355), (14, 1483825), (25, 830942), (35, 593530), (49, 423950), (50, 415471), (61, 340550), (70, 296765), (98, 211975), (122, 170275), (139, 149450), (175, 118706), (245, 84790), (278, 74725), (305, 68110), (350, 59353), (427, 48650), (490, 42395), (610, 34055), (695, 29890), (854, 24325), (973, 21350), (1225, 16958), (1390, 14945), (1525, 13622), (1946, 10675), (2135, 9730), (2450, 8479), (2989, 6950), (3050, 6811), (3475, 5978), (4270, 4865)]