20282580

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{401}}^1$

素因数の和:697

約数の個数: 72

約数和(自身を含む): 61896744

約数和(自身を除く): 41614164

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 281, 401, 562, 802, 843, 1124, 1203, 1405, 1604, 1686, 2005, 2406, 2529, 2810, 3372, 3609, 4010, 4215, 4812, 5058, 5620, 6015, 7218, 8020, 8430, 10116, 12030, 12645, 14436, 16860, 18045, 24060, 25290, 36090, 50580, 72180, 112681, 225362, 338043, 450724, 563405, 676086, 1014129, 1126810, 1352172, 1690215, 2028258, 2253620, 3380430, 4056516, 5070645, 6760860, 10141290, 20282580]

約数ペア:

[(1, 20282580), (2, 10141290), (3, 6760860), (4, 5070645), (5, 4056516), (6, 3380430), (9, 2253620), (10, 2028258), (12, 1690215), (15, 1352172), (18, 1126810), (20, 1014129), (30, 676086), (36, 563405), (45, 450724), (60, 338043), (90, 225362), (180, 112681), (281, 72180), (401, 50580), (562, 36090), (802, 25290), (843, 24060), (1124, 18045), (1203, 16860), (1405, 14436), (1604, 12645), (1686, 12030), (2005, 10116), (2406, 8430), (2529, 8020), (2810, 7218), (3372, 6015), (3609, 5620), (4010, 5058), (4215, 4812)]