220181650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^2\times {\mathrm{71}}^1\times {\mathrm{367}}^1$

素因数の和:476

約数の個数: 72

約数和(自身を含む): 450935424

約数和(自身を除く): 230753774

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 169, 325, 338, 355, 367, 650, 710, 734, 845, 923, 1690, 1775, 1835, 1846, 3550, 3670, 4225, 4615, 4771, 8450, 9175, 9230, 9542, 11999, 18350, 23075, 23855, 23998, 26057, 46150, 47710, 52114, 59995, 62023, 119275, 119990, 124046, 130285, 238550, 260570, 299975, 310115, 338741, 599950, 620230, 651425, 677482, 1302850, 1550575, 1693705, 3101150, 3387410, 4403633, 8468525, 8807266, 16937050, 22018165, 44036330, 110090825, 220181650]

約数ペア:

[(1, 220181650), (2, 110090825), (5, 44036330), (10, 22018165), (13, 16937050), (25, 8807266), (26, 8468525), (50, 4403633), (65, 3387410), (71, 3101150), (130, 1693705), (142, 1550575), (169, 1302850), (325, 677482), (338, 651425), (355, 620230), (367, 599950), (650, 338741), (710, 310115), (734, 299975), (845, 260570), (923, 238550), (1690, 130285), (1775, 124046), (1835, 119990), (1846, 119275), (3550, 62023), (3670, 59995), (4225, 52114), (4615, 47710), (4771, 46150), (8450, 26057), (9175, 23998), (9230, 23855), (9542, 23075), (11999, 18350)]